{"common":{"save":0,"post_id":"6950","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2378","post_id":"6950","mon_id":"1159012","chapter_id":"1159019","question":"<p>Trong các phân s\u1ed1 <span class=\"math-tex\">$\\dfrac{4}{8}; \\dfrac{5}{3};\\dfrac{4}{6};\\dfrac{5}{12};\\dfrac{3}{9}$<\/span>, có bao nhiêu phân s\u1ed1 t\u1ed1i gi\u1ea3n?<\/p>","options":["1","2","3","0"],"correct":"2","level":"3","hint":"","answer":"<p>Có 3 phân s\u1ed1 <strong>ch\u01b0a t\u1ed1i gi\u1ea3n<\/strong> là:<\/p><p><span class=\"math-tex\">$\\dfrac{4}{8}=\\dfrac{4:4}{8:4}=\\dfrac{1}{2}$<\/span> ;<\/p><p> <span class=\"math-tex\">$\\dfrac{4}{6}=\\dfrac{4:2}{6:2}=\\dfrac{2}{3}$<\/span> ;<\/p><p> <span class=\"math-tex\">$\\dfrac{3}{9}=\\dfrac{3:3}{9:3}=\\dfrac{1}{3}$<\/span> ;<\/p><p>Có 2 phân s\u1ed1 t\u1ed1i gi\u1ea3n <strong>là <span class=\"math-tex\">$\\dfrac{5}{3}$<\/span><strong> <\/strong>và <span class=\"math-tex\">$\\dfrac{5}{12}$<\/span><\/strong><\/p><p>Ch\u1ecdn<span style=\"color:#16a085;\"><strong> bông hoa ghi s\u1ed1 2<\/strong><\/span>.<\/p>","type":"choose","extra_type":"flower","time":"0","user_id":"131","test":"0","date":"2024-01-31 02:57:48","option_type":"txt","len":0},{"id":"2380","post_id":"6950","mon_id":"1159012","chapter_id":"1159019","question":"<p>Rút g\u1ecdn phân s\u1ed1 <span class=\"math-tex\">$\\dfrac{24}{12}$<\/span> \u0111\u01b0\u1ee3c phân s\u1ed1 t\u1ed1i gi\u1ea3n là<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{2}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{6}{3}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{4}{2}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{1}=2$<\/span>"],"correct":"4","level":"3","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{24}{12}=\\dfrac{24:12}{12:12}=\\dfrac{2}{1}=2$<\/span><\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{1}=2$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-01-31 03:00:53","option_type":"math","len":0},{"id":"2382","post_id":"6950","mon_id":"1159012","chapter_id":"1159019","question":"<p>Rút g\u1ecdn phân s\u1ed1 <span class=\"math-tex\">$\\dfrac{120}{180}$<\/span> \u0111\u01b0\u1ee3c phân s\u1ed1 t\u1ed1i gi\u1ea3n là<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{12}{18}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{6}{9}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{3}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{4}{6}$<\/span>"],"correct":"3","level":"3","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{120}{180}=\\dfrac{120:60}{180:60}=\\dfrac{2}{3}$<\/span><\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{3}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-01-31 03:03:33","option_type":"math","len":0}]}