《2025年速算天地数学口算心算六年级上册苏教版》

$12÷\frac{1}{7}=$84 $\frac{4}{11}÷\frac{1}{8}=$$\frac{32}{11}$
$14÷\frac{1}{3}=$42 $\frac{7}{11}÷\frac{3}{11}=$$\frac{7}{3}$
$36÷\frac{18}{4}=$8 $\frac{3}{5}÷\frac{1}{5}=$3
$10÷\frac{5}{9}=$18 $\frac{1}{2}÷\frac{3}{4}=$$\frac{2}{3}$
$\frac{3}{4}÷\frac{1}{2}=$$\frac{3}{2}$ $\frac{4}{3}÷\frac{1}{8}=$$\frac{32}{3}$
$\frac{5}{6}÷\frac{5}{9}=$$\frac{3}{2}$ $\frac{7}{9}÷\frac{3}{9}=$$\frac{7}{3}$
$\frac{5}{3}÷\frac{5}{3}=$1 $14÷\frac{7}{5}=$10
$\frac{6}{7}÷\frac{6}{5}=$$\frac{5}{7}$ $\frac{1}{2}÷\frac{1}{12}=$6
$\frac{5}{8}÷5=$$\frac{1}{8}$ $\frac{1}{3}÷48=$$\frac{1}{144}$
$\frac{1}{7}÷\frac{1}{3}=$$\frac{3}{7}$ $\frac{1}{4}÷\frac{1}{16}=$4

答案： 解析：这些题目都是关于分数的除法运算。在分数除法中，一个数除以另一个分数，等于这个数乘以另一个分数的倒数。
答案：
$12 ÷ \frac{1}{7} = 12 × 7 = 84$
$\frac{4}{11} ÷ \frac{1}{8} = \frac{4}{11} × 8 = \frac{32}{11}$
$14 ÷ \frac{1}{3} = 14 × 3 = 42$
$\frac{7}{11} ÷ \frac{3}{11} = \frac{7}{11} × \frac{11}{3} = \frac{7}{3}$
$36 ÷ \frac{18}{4} = 36 × \frac{4}{18} = 8$
$\frac{3}{5} ÷ \frac{1}{5} = \frac{3}{5} × 5 = 3$
$10 ÷ \frac{5}{9} = 10 × \frac{9}{5} = 18$
$\frac{1}{2} ÷ \frac{3}{4} = \frac{1}{2} × \frac{4}{3} = \frac{2}{3}$
$\frac{3}{4} ÷ \frac{1}{2} = \frac{3}{4} × 2 = \frac{3}{2}$
$\frac{4}{3} ÷ \frac{1}{8} = \frac{4}{3} × 8 = \frac{32}{3}$
$\frac{5}{6} ÷ \frac{5}{9} = \frac{5}{6} × \frac{9}{5} = \frac{3}{2}$
$\frac{7}{9} ÷ \frac{3}{9} = \frac{7}{9} × \frac{9}{3} = \frac{7}{3}$
$\frac{5}{3} ÷ \frac{5}{3} = \frac{5}{3} × \frac{3}{5} = 1$
$14 ÷ \frac{7}{5} = 14 × \frac{5}{7} = 10$
$\frac{6}{7} ÷ \frac{6}{5} = \frac{6}{7} × \frac{5}{6} = \frac{5}{7}$
$\frac{1}{2} ÷ \frac{1}{12} = \frac{1}{2} × 12 = 6$
$\frac{5}{8} ÷ 5 = \frac{5}{8} × \frac{1}{5} = \frac{1}{8}$
$\frac{1}{3} ÷ 48 = \frac{1}{3} × \frac{1}{48} = \frac{1}{144}$
$\frac{1}{7} ÷ \frac{1}{3} = \frac{1}{7} × 3 = \frac{3}{7}$
$\frac{1}{4} ÷ \frac{1}{16} = \frac{1}{4} × 16 = 4$