{"id":1251,"date":"2026-10-02T14:21:05","date_gmt":"2026-10-02T05:21:05","guid":{"rendered":"https:\/\/www.risu-japan.com\/drill\/?p=1251"},"modified":"2026-10-02T14:21:05","modified_gmt":"2026-10-02T05:21:05","slug":"fraction-decimal-conversion","status":"publish","type":"drill","link":"https:\/\/www.risu-japan.com\/drill\/grade5\/fraction-decimal-relation\/fraction-decimal-conversion\/","title":{"rendered":"\u5206\u6570\u304b\u3089\u5c0f\u6570\u30fb\u5c0f\u6570\u304b\u3089\u5206\u6570\u3078\u306e\u5909\u63db"},"content":{"rendered":"<p><!-- body-start --><\/p>\n<h2>\u5206\u6570\u3068 \u5c0f\u6570\u306e \u5909\u304b\u3093\u3068\u306f<\/h2>\n<p>\u5206\u6570\u3068\u5c0f\u6570\u306f\u3001\u898b\u305f\u76ee\u306f\u3061\u304c\u3063\u3066\u3082\u300c1\u3088\u308a\u5c0f\u3055\u3044\u6570\uff08\u7aef\u6570\uff09\u300d\u3092\u8868\u3059\u3053\u3068\u306e\u3067\u304d\u308b\u540c\u3058\u4ef2\u9593\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u304a\u305f\u304c\u3044\u306b\u5f62\u3092\u5909\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5206\u6570\u3092\u5c0f\u6570\u306b\u76f4\u3059\u306b\u306f\u3001\u5206\u6570\u306e\u3082\u3068\u306b\u306a\u3063\u3066\u3044\u308b\u300c\u5206\u5b50 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>\u00f7<\/mo><\/math><\/span> \u5206\u6bcd\u300d\u306e\u308f\u308a\u7b97\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u53cd\u5bfe\u306b\u3001\u5c0f\u6570\u3092\u5206\u6570\u306b\u76f4\u3059\u306b\u306f\u3001\u5c0f\u6570\u306e\u4f4d\uff08<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.1<\/mn><\/math><\/span> \u3084 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.01<\/mn><\/math><\/span>\uff09\u306b\u6ce8\u76ee\u3057\u3066\u3001\u5206\u6bcd\u304c <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>10<\/mn><\/math><\/span> \u3084 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>100<\/mn><\/math><\/span> \u306e\u5206\u6570\u3092\u4f5c\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u899a\u3048\u308b\u3068\u3001\u5206\u6570\u3068\u5c0f\u6570\u304c\u307e\u3056\u3063\u305f\u8a08\u7b97\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u8a08\u7b97\u306e \u30eb\u30fc\u30eb<\/h2>\n<h3>1. \u5206\u6570\u3092\u5c0f\u6570\u306b\u76f4\u3059<\/h3>\n<p>\u5206\u5b50 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>\u00f7<\/mo><\/math><\/span> \u5206\u6bcd \u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\uff08\u4f8b\uff1a<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>1<\/mn><\/mrow><mrow><mn>4<\/mn><\/mrow><\/mfrac><mo>=<\/mo><mn>1<\/mn><mo>\u00f7<\/mo><mn>4<\/mn><mo>=<\/mo><mn>0.25<\/mn><\/math><\/span>\uff09<\/p>\n<h3>2. \u5c0f\u6570\u7b2c\u4e00\u4f4d\u307e\u3067\u306e\u6570\u3092\u5206\u6570\u306b\u76f4\u3059<\/h3>\n<p><span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.1<\/mn><\/math><\/span> \u306e\u4f4d\u307e\u3067\u306e\u6570\u306f\u3001\u5206\u6bcd\u3092 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>10<\/mn><\/math><\/span> \u306b\u3057\u307e\u3059\u3002\uff08\u4f8b\uff1a<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.3<\/mn><mo>=<\/mo><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>10<\/mn><\/mrow><\/mfrac><\/math><\/span>\uff09<\/p>\n<h3>3. \u5c0f\u6570\u7b2c\u4e8c\u4f4d\u307e\u3067\u306e\u6570\u3092\u5206\u6570\u306b\u76f4\u3059<\/h3>\n<p><span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.01<\/mn><\/math><\/span> \u306e\u4f4d\u307e\u3067\u306e\u6570\u306f\u3001\u5206\u6bcd\u3092 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>100<\/mn><\/math><\/span> \u306b\u3057\u307e\u3059\u3002\uff08\u4f8b\uff1a<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.17<\/mn><mo>=<\/mo><mfrac><mrow><mn>17<\/mn><\/mrow><mrow><mn>100<\/mn><\/mrow><\/mfrac><\/math><\/span>\uff09<\/p>\n<p><!-- \u4f8b\u984c --><\/p>\n<section class=\"example-section\">\n<h2 class=\"example-section__heading\">\u4f8b\u984c<\/h2>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f1<\/h3>\n<p>\u6b21\u306e \u5206\u6570\u3092 \u5c0f\u6570\u3067 \u8868\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"risu-math risu-math--block\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"block\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>5<\/mn><\/mrow><\/mfrac><\/math><\/div>\n<\/p><\/div>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f2<\/h3>\n<p>\u6b21\u306e \u5c0f\u6570\u3092 \u5206\u6570\u3067 \u8868\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"risu-math risu-math--block\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"block\"><mn>0.7<\/mn><\/math><\/div>\n<\/p><\/div>\n<div class=\"explanation-block\">\n<h3 class=\"explanation-block__heading\">\u89e3\u8aac<\/h3>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f1<\/h4>\n<p>\u5206\u6570\u3092\u5c0f\u6570\u306b\u76f4\u3059\u306b\u306f\u300c\u5206\u5b50 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>\u00f7<\/mo><\/math><\/span> \u5206\u6bcd\u300d\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>3<\/mn><mo>\u00f7<\/mo><mn>5<\/mn><mo>=<\/mo><mn>0.6<\/mn><\/math><\/span> \u3067\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a0.6<\/p>\n<\/p><\/div>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f2<\/h4>\n<p><span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.7<\/mn><\/math><\/span> \u306f\u5c0f\u6570\u7b2c\u4e00\u4f4d\u307e\u3067\u306e\u6570\uff08<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.1<\/mn><\/math><\/span> \u306e\u4f4d\uff09\u306a\u306e\u3067\u3001\u5206\u6bcd\u3092 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>10<\/mn><\/math><\/span> \u306b\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5206\u6570\u3067\u8868\u3059\u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>7<\/mn><\/mrow><mrow><mn>10<\/mn><\/mrow><\/mfrac><\/math><\/span> \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>7<\/mn><\/mrow><mrow><mn>10<\/mn><\/mrow><\/mfrac><\/math><\/span><\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p><!-- \u7df4\u7fd2\u554f\u984c --><\/p>\n<section class=\"practice-problems\">\n<h2>\u7df4\u7fd2\u554f\u984c<\/h2>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f1<\/h3>\n<p>\u6b21\u306e \u5206\u6570\u3092 \u5c0f\u6570\u3067 \u8868\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"risu-math risu-math--block\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"block\"><mfrac><mrow><mn>7<\/mn><\/mrow><mrow><mn>10<\/mn><\/mrow><\/mfrac><\/math><\/div>\n<\/p><\/div>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f2<\/h3>\n<p>\u6b21\u306e \u5c0f\u6570\u3092 \u5206\u6570\u3067 \u8868\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"risu-math risu-math--block\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"block\"><mn>0.03<\/mn><\/math><\/div>\n<\/p><\/div>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f3<\/h3>\n<p><span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>4<\/mn><\/mrow><mrow><mn>5<\/mn><\/mrow><\/mfrac><\/math><\/span> \u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.7<\/mn><\/math><\/span> \u3067\u306f\u3001\u3069\u3061\u3089\u306e \u6570\u304c \u5927\u304d\u3044\u3067\u3059\u304b\u3002\u5206\u6570\u3092 \u5c0f\u6570\u306b \u76f4\u3057\u3066 \u304f\u3089\u3079\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/p><\/div>\n<\/section>\n<p><!-- \u5fdc\u7528\u554f\u984c --><\/p>\n<section class=\"advanced-problems\">\n<h2>\u5fdc\u7528\u554f\u984c<\/h2>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f1<\/h3>\n<p>\u6b21\u306e \u5c0f\u6570\u3092 \u5206\u6570\u3067 \u8868\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"risu-math risu-math--block\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"block\"><mn>0.75<\/mn><\/math><\/div>\n<\/p><\/div>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f2<\/h3>\n<p>\u5206\u6570\u306e \u4e2d\u306b\u306f\u3001\u5c0f\u6570\u3067 \u3074\u3063\u305f\u308a \u8868\u305b\u306a\u3044 \u3082\u306e\u304c \u3042\u308a\u307e\u3059\u3002<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>5<\/mn><\/mrow><mrow><mn>6<\/mn><\/mrow><\/mfrac><\/math><\/span> \u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>8<\/mn><\/mrow><\/mfrac><\/math><\/span> \u306e \u3046\u3061\u3001\u5c0f\u6570\u306b \u76f4\u3057\u305f \u3068\u304d\u306b \u308f\u308a\u5207\u308c\u308b\u306e\u306f \u3069\u3061\u3089\u3067\u3059\u304b\u3002\u8a08\u7b97\u3057\u3066 \u78ba\u304b\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/p><\/div>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f3<\/h3>\n<p>\u9577\u3055\u3092 \u304f\u3089\u3079\u307e\u3059\u3002<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>4<\/mn><\/mrow><\/mfrac><mtext>m<\/mtext><\/math><\/span> \u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>80<\/mn><mtext>cm<\/mtext><\/math><\/span> \u3067\u306f\u3001\u3069\u3061\u3089\u304c \u3069\u308c\u3060\u3051 \u9577\u3044\u3067\u3059\u304b\u3002\uff08\u30d2\u30f3\u30c8\uff1a\u5358\u4f4d\u3092 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mtext>m<\/mtext><\/math><\/span> \u306b \u305d\u308d\u3048\u3066\u3001\u5c0f\u6570\u306b \u3057\u3066 \u304f\u3089\u3079\u307e\u3057\u3087\u3046\uff09<\/p>\n<\/p><\/div>\n<\/section>\n<p><!-- \u89e3\u7b54\u3068\u89e3\u8aac --><\/p>\n<section class=\"answer-section\">\n<h2>\u89e3\u7b54\u3068\u89e3\u8aac<\/h2>\n<div class=\"answer-group answer-group--practice\">\n<h3>\u7df4\u7fd2\u554f\u984c<\/h3>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f1<\/h4>\n<p>\u5206\u6570\u3092\u5c0f\u6570\u306b\u76f4\u3059\u306b\u306f\u300c\u5206\u5b50 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>\u00f7<\/mo><\/math><\/span> \u5206\u6bcd\u300d\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>7<\/mn><mo>\u00f7<\/mo><mn>10<\/mn><mo>=<\/mo><mn>0.7<\/mn><\/math><\/span> \u3067\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a0.7<\/p>\n<\/p><\/div>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f2<\/h4>\n<p><span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.03<\/mn><\/math><\/span> \u306f\u5c0f\u6570\u7b2c\u4e8c\u4f4d\u307e\u3067\u306e\u6570\uff08<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.01<\/mn><\/math><\/span> \u306e\u4f4d\uff09\u306a\u306e\u3067\u3001\u5206\u6bcd\u3092 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>100<\/mn><\/math><\/span> \u306b\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5206\u6570\u3067\u8868\u3059\u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>100<\/mn><\/mrow><\/mfrac><\/math><\/span> \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>100<\/mn><\/mrow><\/mfrac><\/math><\/span><\/p>\n<\/p><\/div>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f3<\/h4>\n<p><span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>4<\/mn><\/mrow><mrow><mn>5<\/mn><\/mrow><\/mfrac><\/math><\/span> \u3092\u5c0f\u6570\u306b\u76f4\u3059\u3068\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>4<\/mn><mo>\u00f7<\/mo><mn>5<\/mn><mo>=<\/mo><mn>0.8<\/mn><\/math><\/span> \u306b\u306a\u308a\u307e\u3059\u3002<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.8<\/mn><\/math><\/span> \u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.7<\/mn><\/math><\/span> \u3092\u6bd4\u3079\u308b\u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.8<\/mn><\/math><\/span> \u306e\u65b9\u304c\u5927\u304d\u3044\u306e\u3067\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>4<\/mn><\/mrow><mrow><mn>5<\/mn><\/mrow><\/mfrac><\/math><\/span> \u306e\u65b9\u304c\u5927\u304d\u3044\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>4<\/mn><\/mrow><mrow><mn>5<\/mn><\/mrow><\/mfrac><\/math><\/span> \u306e\u307b\u3046\u304c\u5927\u304d\u3044<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"answer-group answer-group--advanced\">\n<h3>\u5fdc\u7528\u554f\u984c<\/h3>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f1<\/h4>\n<p><span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.75<\/mn><\/math><\/span> \u306f\u5c0f\u6570\u7b2c\u4e8c\u4f4d\u307e\u3067\u306e\u6570\u306a\u306e\u3067\u5206\u6bcd\u3092 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>100<\/mn><\/math><\/span> \u306b\u3059\u308b\u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>75<\/mn><\/mrow><mrow><mn>100<\/mn><\/mrow><\/mfrac><\/math><\/span> \u306b\u306a\u308a\u307e\u3059\u3002\u3061\u306a\u307f\u306b\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>75<\/mn><\/mrow><mrow><mn>100<\/mn><\/mrow><\/mfrac><\/math><\/span> \u306f\u5206\u5b50\u3068\u5206\u6bcd\u3092\u3069\u3061\u3089\u3082 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>25<\/mn><\/math><\/span> \u3067\u5272\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u300c\u7d04\u5206\u300d\u304c\u3067\u304d\u307e\u3059\u3002\u3082\u3057\u7d04\u5206\u3092\u77e5\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>4<\/mn><\/mrow><\/mfrac><\/math><\/span> \u3068\u7b54\u3048\u3066\u3082\u6b63\u89e3\u3067\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>75<\/mn><\/mrow><mrow><mn>100<\/mn><\/mrow><\/mfrac><\/math><\/span>\uff08<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>4<\/mn><\/mrow><\/mfrac><\/math><\/span> \u3067\u3082\u6b63\u89e3\u3067\u3059\uff09<\/p>\n<\/p><\/div>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f2<\/h4>\n<p>\u305d\u308c\u305e\u308c\u306e\u5206\u6570\u3092\u300c\u5206\u5b50 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>\u00f7<\/mo><\/math><\/span> \u5206\u6bcd\u300d\u3067\u5c0f\u6570\u306b\u8a08\u7b97\u3057\u307e\u3059\u3002<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>5<\/mn><\/mrow><mrow><mn>6<\/mn><\/mrow><\/mfrac><\/math><\/span> \u306f <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>5<\/mn><mo>\u00f7<\/mo><mn>6<\/mn><mo>=<\/mo><mn>0.8333<\/mn><mo>\u22ef<\/mo><\/math><\/span> \u3068\u306a\u3063\u3066\u308f\u308a\u5207\u308c\u307e\u305b\u3093\u304c\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>8<\/mn><\/mrow><\/mfrac><\/math><\/span> \u306f <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>3<\/mn><mo>\u00f7<\/mo><mn>8<\/mn><mo>=<\/mo><mn>0.375<\/mn><\/math><\/span> \u3068\u306a\u3063\u3066\u5272\u308a\u5207\u308c\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5272\u308a\u5207\u308c\u308b\u306e\u306f <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>8<\/mn><\/mrow><\/mfrac><\/math><\/span> \u3067\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>8<\/mn><\/mrow><\/mfrac><\/math><\/span><\/p>\n<\/p><\/div>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f3<\/h4>\n<p><span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>80<\/mn><mtext>cm<\/mtext><\/math><\/span> \u3092 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mtext>m<\/mtext><\/math><\/span> \u306b\u76f4\u3059\u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.8<\/mn><mtext>m<\/mtext><\/math><\/span> \u3067\u3059\u3002<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mfrac><mrow><mn>3<\/mn><\/mrow><mrow><mn>4<\/mn><\/mrow><\/mfrac><mtext>m<\/mtext><\/math><\/span> \u3092\u5c0f\u6570\u306b\u76f4\u3059\u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>3<\/mn><mo>\u00f7<\/mo><mn>4<\/mn><mo>=<\/mo><mn>0.75<\/mn><mtext>m<\/mtext><\/math><\/span> \u306b\u306a\u308a\u307e\u3059\u3002\u304f\u3089\u3079\u308b\u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.8<\/mn><mtext>m<\/mtext><\/math><\/span>\uff08<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" 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risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>0.05<\/mn><mtext>m<\/mtext><\/math><\/span> \u9577\u3044 \u3067\u3082\u6b63\u89e3\u3067\u3059\uff09<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p><!-- \u5b66\u7fd2\u306e\u30a2\u30c9\u30d0\u30a4\u30b9 --><\/p>\n<aside class=\"advice-box\">\n<h2 class=\"advice-box__heading\">\u5b66\u7fd2\u306e\u30a2\u30c9\u30d0\u30a4\u30b9<\/h2>\n<div class=\"advice-box__body\">\n<p>\u4eca\u56de\u306f\u3001\u5206\u6570\u3068\u5c0f\u6570\u306e\u76f8\u4e92\u5909\u63db\u306b\u3064\u3044\u3066\u5b66\u3093\u3067\u304d\u307e\u3057\u305f\u3002\u5206\u6570\u3092\u5c0f\u6570\u306b\u3059\u308b\u3068\u304d\u306f\u300c\u5206\u5b50 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>\u00f7<\/mo><\/math><\/span> 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