Chú ý: Để đảm bảo quyền lợi và bảo vệ tài khoản của mình
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{"common":{"save":0,"post_id":"6944","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2492","post_id":"6944","mon_id":"1159012","chapter_id":"1159022","question":"<p>K\u1ebft qu\u1ea3 c\u1ee7a phép tính <span class=\"math-tex\">$\\dfrac{11}{12}+\\dfrac{7}{24}$<\/span>.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{19}{24}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{18}{24}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{29}{24}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{29}{12}$<\/span>"],"correct":"3","level":"3","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{11}{12}+\\dfrac{7}{24}=\\dfrac{22}{24}+\\dfrac{7}{24}=\\dfrac{29}{24}$<\/span><\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{29}{24}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-07 03:48:33","option_type":"math","len":0},{"id":"2494","post_id":"6944","mon_id":"1159012","chapter_id":"1159022","question":"<p>Ba nhóm công nhân cùng s\u1eeda m\u1ed9t \u0111o\u1ea1n \u0111\u01b0\u1eddng. Nhóm th\u1ee9 nh\u1ea5t \u0111ã s\u1eeda \u0111\u01b0\u1ee3c <span class=\"math-tex\">$\\dfrac{5}{13}$<\/span> \u0111o\u1ea1n \u0111\u01b0\u1eddng, nhóm th\u1ee9 hai \u0111ã s\u1eeda \u0111\u01b0\u1ee3c <span class=\"math-tex\">$\\dfrac{7}{26}$<\/span> \u0111o\u1ea1n \u0111\u01b0\u1eddng, nhóm th\u1ee9 ba \u0111ã s\u1eeda \u0111\u01b0\u1ee3c <span class=\"math-tex\">$\\dfrac{1}{13}$<\/span> \u0111o\u1ea1n \u0111\u01b0\u1eddng. H\u1ecfi ba nhóm \u0111ã s\u1eeda \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 bao nhiêu ph\u1ea7n \u0111o\u1ea1n \u0111\u01b0\u1eddng?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{19}{26}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{19}{25}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{19}{13}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{9}{13}$<\/span>"],"correct":"1","level":"3","hint":"","answer":"<p>Ba nhóm \u0111ã s\u1eeda \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 s\u1ed1 ph\u1ea7n \u0111o\u1ea1n \u0111\u01b0\u1eddng là:<\/p><p><span class=\"math-tex\">$\\dfrac{5}{13}$<\/span> + <span class=\"math-tex\">$\\dfrac{7}{26}$<\/span> + <span class=\"math-tex\">$\\dfrac{1}{13}$<\/span><\/p><p>= <span class=\"math-tex\">$\\dfrac{10}{26}$<\/span> + <span class=\"math-tex\">$\\dfrac{7}{26}$<\/span> + <span class=\"math-tex\">$\\dfrac{2}{26}$<\/span><\/p><p>= <span class=\"math-tex\">$\\dfrac{19}{26}$<\/span><\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{19}{26}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-07 03:55:27","option_type":"math","len":0},{"id":"2495","post_id":"6944","mon_id":"1159012","chapter_id":"1159022","question":"<p>Tính b\u1eb1ng cách thu\u1eadn ti\u1ec7n.<\/p><p><span class=\"math-tex\">$\\dfrac{17}{18}+\\dfrac{5}{18}+\\dfrac{3}{18}+\\dfrac{15}{18}$<\/span><\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{20}{19}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{20}{9}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{41}{18}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{40}{11}$<\/span>"],"correct":"2","level":"3","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{17}{18}+\\dfrac{5}{18}+\\dfrac{3}{18}+\\dfrac{15}{18}$<\/span><\/p><p>= <span class=\"math-tex\">$\\bigg(\\dfrac{17}{18}+\\dfrac{3}{18}\\bigg)+\\bigg(\\dfrac{5}{18}+\\dfrac{15}{18}\\bigg)$<\/span><\/p><p>= <span class=\"math-tex\">$\\dfrac{20}{18}+\\dfrac{20}{18}$<\/span><\/p><p>= <span class=\"math-tex\">$\\dfrac{40}{18}$<\/span><\/p><p>= <span class=\"math-tex\">$\\dfrac{20}{9}$<\/span><\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{20}{9}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-07 03:59:44","option_type":"math","len":0}]}