{"common":{"save":0,"post_id":"7562","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1108","post_id":"7562","mon_id":"1159414","chapter_id":"1159417","question":"<p>Cho các phân s\u1ed1 sau: <span class=\"math-tex\">$\\dfrac{3}{5};\\dfrac{7}{10};\\dfrac{9}{20};\\dfrac{49}{100};\\dfrac{5}{8000};\\dfrac{3739}{100000}$<\/span>. Có bao nhiêu phân s\u1ed1 th\u1eadp phân?<\/p>","options":["<strong>A.<\/strong> 3 phân s\u1ed1","<strong>B.<\/strong> 4 phân s\u1ed1","<strong>C.<\/strong> 5 phân s\u1ed1","<strong>D.<\/strong> 6 phân s\u1ed1"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 3 phân s\u1ed1.<\/span><\/p><p>Các phân s\u1ed1 th\u1eadp phân là: <span class=\"math-tex\">$\\dfrac{7}{10};\\dfrac{49}{100};\\dfrac{3739}{100000}$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-08-18 00:24:00","option_type":"txt","len":2},{"id":"1110","post_id":"7562","mon_id":"1159414","chapter_id":"1159417","question":"<p>Ch\u1ecdn \u0111áp án g\u1ed3m các phân s\u1ed1 th\u1eadp phân.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{5};\\dfrac{7}{10};\\dfrac{9}{20}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{100};\\dfrac{7}{1000};\\dfrac{9}{10}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{30};\\dfrac{2}{10};\\dfrac{4}{100}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{30}{100};\\dfrac{8}{30};\\dfrac{2}{10}$<\/span>"],"correct":"2","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{100};\\dfrac{7}{1000};\\dfrac{9}{10}$<\/span>.<\/span><\/p><p>Các phân s\u1ed1 <span class=\"math-tex\">$\\dfrac{3}{100};\\dfrac{7}{1000};\\dfrac{9}{10}$<\/span> có m\u1eabu l\u1ea7n l\u01b0\u1ee3t là 100, 1000, 10 nên là các phân s\u1ed1 th\u1eadp phân.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-08-18 00:27:03","option_type":"math","len":0},{"id":"1112","post_id":"7562","mon_id":"1159414","chapter_id":"1159417","question":"<p>Vi\u1ebft phân s\u1ed1 <span class=\"math-tex\">$\\dfrac{4}{25}$<\/span> thành phân s\u1ed1 th\u1eadp phân ta \u0111\u01b0\u1ee3c<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{15}{100}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{12}{100}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{20}{100}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{16}{100}$<\/span>"],"correct":"4","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{16}{100}$<\/span>.<\/span><\/p><p>Ta có <span class=\"math-tex\">$\\dfrac{4}{25}=\\dfrac{4\\times4}{25\\times4}=\\dfrac{16}{100}$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-08-18 00:29:23","option_type":"math","len":0}]}