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2025年天天练口算六年级数学上册人教版
注：目前有些书本章节名称可能整理的还不是很完善，但都是按照顺序排列的，请同学们按照顺序仔细查找。练习册2025年天天练口算六年级数学上册人教版答案主要是用来给同学们做完题方便对答案用的，请勿直接抄袭。
$\frac {5}{12}+\frac {5}{12}= $
$\frac{5}{12}$
×
2
$\frac {3}{19}×4= \frac {}$
3
×
4
19
$= $
$\frac{12}{19}$
$\frac {3}{11}+\frac {3}{11}+\frac {3}{11}= $
$\frac{3}{11}$
×
3
$\frac {11}{20}×5= \frac {}$
11
×
5
20
$= $
$\frac{11}{4}$
$\frac {2}{9}+\frac {2}{9}+\frac {2}{9}+\frac {2}{9}= $
$\frac{2}{9}$
×
4
$\frac {5}{12}×9= \frac {}$
5
×
9
12
$= $
$\frac{15}{4}$
$\frac {2}{7}+\frac {2}{7}+\frac {2}{7}+\frac {2}{7}+\frac {2}{7}= $
$\frac{2}{7}$
×
5
$\frac {3}{4}×12= \frac {}$
3
×
12
4
$= $
9
$\ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots$
答案：$\frac{5}{12}+\frac{5}{12}=\frac{5}{12}×2$
$\frac{3}{19}×4=\frac{3×4}{19}=\frac{12}{19}$
$\frac{3}{11}+\frac{3}{11}+\frac{3}{11}=\frac{3}{11}×3$
$\frac{11}{20}×5=\frac{11×5}{20}=\frac{11}{4}$
$\frac{2}{9}+\frac{2}{9}+\frac{2}{9}+\frac{2}{9}=\frac{2}{9}×4$
$\frac{5}{12}×9=\frac{5×9}{12}=\frac{15}{4}$
$\frac{2}{7}+\frac{2}{7}+\frac{2}{7}+\frac{2}{7}+\frac{2}{7}=\frac{2}{7}×5$
$\frac{3}{4}×12=\frac{3×12}{4}=9$
$\frac {3}{4}+\frac {1}{4}=$
1
$\frac {4}{15}×12=$
$\frac{16}{5}$
$\frac {2}{17}×12=$
$\frac{24}{17}$
$\frac {4}{9}×2=$
$\frac{8}{9}$
$20×\frac {3}{8}=$
$\frac{15}{2}$
$7×\frac {3}{56}=$
$\frac{3}{8}$
$\frac {2}{5}+\frac {1}{3}=$
$\frac{11}{15}$
$\frac {11}{20}×14=$
$\frac{77}{10}$
$1-\frac {9}{10}=$
$\frac{1}{10}$
$\frac {2}{11}×5=$
$\frac{10}{11}$
$\frac {4}{25}×15=$
$\frac{12}{5}$
$6×\frac {2}{15}=$
$\frac{4}{5}$
$4+\frac {2}{5}=$
$\frac{22}{5}$
$\frac {8}{15}×9=$
$\frac{24}{5}$
$\frac {4}{7}-\frac {2}{7}=$
$\frac{2}{7}$
$\frac {3}{16}×9=$
$\frac{27}{16}$
$\frac {3}{4}×2=$
$\frac{3}{2}$
$\frac {3}{4}×3=$
$\frac{9}{4}$
$\frac {5}{31}×13=$
$\frac{65}{31}$
$\frac {9}{14}×6=$
$\frac{27}{7}$
$\frac {5}{8}×18=$
$\frac{45}{4}$
答案：解析：
这些题目都是基础的分数和小数的四则运算，包括加法、减法、乘法和除法。我们可以直接进行计算。
答案：
1. $\frac{3}{4} + \frac{1}{4} = 1$
2. $\frac{4}{15} × 12 = \frac{48}{15} = \frac{16}{5}$ 或者 $3.2$（转换为小数形式，以下均保留分数形式）
3. $\frac{2}{17} × 12 = \frac{24}{17}$
4. $\frac{4}{9} × 2 = \frac{8}{9}$
5. $20 × \frac{3}{8} = \frac{60}{8} = \frac{15}{2}$
6. $7 × \frac{3}{56} = \frac{21}{56} = \frac{3}{8}$
7. $\frac{2}{5} + \frac{1}{3} = \frac{6}{15} + \frac{5}{15} = \frac{11}{15}$
8. $\frac{11}{20} × 14 = \frac{154}{20} = \frac{77}{10}$
9. $1 - \frac{9}{10} = \frac{10}{10} - \frac{9}{10} = \frac{1}{10}$
10. $\frac{2}{11} × 5 = \frac{10}{11}$
11. $\frac{4}{25} × 15 = \frac{60}{25} = \frac{12}{5}$
12. $6 × \frac{2}{15} = \frac{12}{15} = \frac{4}{5}$
13. $4 + \frac{2}{5} = \frac{20}{5} + \frac{2}{5} = \frac{22}{5}$
14. $\frac{8}{15} × 9 = \frac{72}{15} = \frac{24}{5}$
15. $\frac{4}{7} - \frac{2}{7} = \frac{2}{7}$
16. $\frac{3}{16} × 9 = \frac{27}{16}$
17. $\frac{3}{4} × 2 = \frac{6}{4} = \frac{3}{2}$
18. $\frac{3}{4} × 3 = \frac{9}{4}$
19. $\frac{5}{31} × 13 = \frac{65}{31}$
20. $\frac{9}{14} × 6 = \frac{54}{14} = \frac{27}{7}$
21. $\frac{5}{8} × 18 = \frac{90}{8} = \frac{45}{4}$
