{"common":{"save":0,"post_id":"6956","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2428","post_id":"6956","mon_id":"1159012","chapter_id":"1159019","question":"<p>M\u1eabu s\u1ed1 chung c\u1ee7a b\u1ed1n ph&acirc;n s\u1ed1&nbsp;<span class=\"math-tex\">$\\dfrac{1}{12}$<\/span>;&nbsp;<span class=\"math-tex\">$\\dfrac{1}{15}$<\/span>;&nbsp;<span class=\"math-tex\">$\\dfrac{2}{3}$<\/span>&nbsp;v&agrave;&nbsp;<span class=\"math-tex\">$\\dfrac{7}{60}$<\/span>&nbsp;l&agrave;<\/p>","options":["<strong>12<\/strong>","<strong>30<\/strong>","<strong>40<\/strong>","<strong>60<\/strong>"],"correct":"4","level":"3","hint":"","answer":"<p>V&igrave; 60 : 12 = 5 ; 60 : 15 = 4 ; 60 : 3 = 20 n&ecirc;n 60 chia h\u1ebft cho 12 ; 15 v&agrave; 3.<\/p><p>Do \u0111&oacute; m\u1eabu s\u1ed1 chung l&agrave; 60.<\/p><p>Ch\u1ecdn ng&ocirc;i sao ghi s\u1ed1 <span style=\"color:#16a085;\"><strong>60<\/strong><\/span>.<\/p>","type":"choose","extra_type":"star","time":"0","user_id":"131","test":"0","date":"2024-02-01 02:39:34","option_type":"txt","len":0},{"id":"2429","post_id":"6956","mon_id":"1159012","chapter_id":"1159019","question":"<p>M\u1eabu s\u1ed1 chung c\u1ee7a b\u1ed1n ph&acirc;n s\u1ed1&nbsp;<span class=\"math-tex\">$\\dfrac{4}{25}$<\/span>&nbsp;;&nbsp;<span class=\"math-tex\">$\\dfrac{3}{10}$<\/span>&nbsp;;&nbsp;<span class=\"math-tex\">$\\dfrac{1}{5}$<\/span>&nbsp;v&agrave;&nbsp;<span class=\"math-tex\">$\\dfrac{7}{50}$<\/span>&nbsp;l&agrave;<\/p>","options":["<strong>25<\/strong>","<strong>60<\/strong>","<strong>50<\/strong>","<strong>80<\/strong>"],"correct":"3","level":"3","hint":"","answer":"<p>V&igrave; 50 : 25 = 2 ; 50 : 10 = 5 ; 50 : 5 = 10 n&ecirc;n 50 chia h\u1ebft cho 25 ; 10 v&agrave; 5.<\/p><p>Do \u0111&oacute; m\u1eabu s\u1ed1 chung l&agrave; 50.<\/p><p>Ch\u1ecdn con c\u1eebu ghi s\u1ed1 <span style=\"color:#16a085;\"><strong>50<\/strong><\/span>.<\/p>","type":"choose","extra_type":"sheep","time":"0","user_id":"131","test":"0","date":"2024-02-01 02:42:22","option_type":"txt","len":0},{"id":"2431","post_id":"6956","mon_id":"1159012","chapter_id":"1159019","question":"<p>Quy \u0111\u1ed3ng m\u1eabu s\u1ed1 hai ph&acirc;n s\u1ed1&nbsp;<span class=\"math-tex\">$\\dfrac{1}{2}$<\/span>&nbsp;v&agrave;&nbsp;<span class=\"math-tex\">$\\dfrac{19}{20}$<\/span>&nbsp;.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{10}{20};\\dfrac{19}{20}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{20};\\dfrac{19}{20}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{20};\\dfrac{19}{20}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{20};\\dfrac{19}{20}$<\/span>"],"correct":"1","level":"3","hint":"","answer":"<p>M\u1eabu s\u1ed1 chung 20.<\/p><p><span class=\"math-tex\">$\\dfrac{1}{2}=\\dfrac{1\\mathbf{x}10}{2\\mathbf{x}10}=\\dfrac{10}{20}$<\/span>&nbsp;v&agrave; gi\u1eef nguy&ecirc;n&nbsp;<span class=\"math-tex\">$\\dfrac{19}{20}$<\/span>.<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{10}{20};\\dfrac{19}{20}$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-01 02:45:30","option_type":"math","len":0}]}