《2025年口算训练宁波出版社六年级数学上册人教版》

(五)
$\frac{5}{12}÷1\frac{1}{8}=$$\frac{10}{27}$
$12÷\frac{2}{5}=$30
$\frac{5}{6}÷\frac{10}{3}=$$\frac{1}{4}$
$3÷\frac{1}{3}=$9
$\frac{8}{7}÷4=$$\frac{2}{7}$
$\frac{8}{15}÷4=$$\frac{2}{15}$
$6÷\frac{3}{5}=$10
$9÷\frac{3}{5}=$15
$\frac{5}{9}÷10=$$\frac{1}{18}$
$6÷\frac{3}{4}=$8
$\frac{7}{10}÷\frac{2}{5}=$$\frac{7}{4}$
$\frac{3}{4}÷6=$$\frac{1}{8}$
$1÷\frac{1}{2}=$2
$\frac{2}{3}÷4=$$\frac{1}{6}$
$\frac{1}{2}÷1=$$\frac{1}{2}$
$4÷\frac{2}{3}=$6
$\frac{2}{7}÷\frac{1}{14}=$4
$\frac{1}{3}÷\frac{1}{5}=$$\frac{5}{3}$
$\frac{8}{15}÷\frac{4}{5}=$$\frac{2}{3}$
$\frac{9}{7}÷\frac{8}{9}=$$\frac{81}{56}$
$\frac{1}{20}÷\frac{3}{10}=$$\frac{1}{6}$
$\frac{3}{8}÷\frac{3}{4}=$$\frac{1}{2}$
$\frac{3}{7}÷\frac{1}{21}=$9
$\frac{4}{5}÷\frac{9}{10}=$$\frac{8}{9}$

答案： $\frac{5}{12}÷1\frac{1}{8}=\frac{5}{12}÷\frac{9}{8}=\frac{5}{12}×\frac{8}{9}=\frac{10}{27}$
$12÷\frac{2}{5}=12×\frac{5}{2}=30$
$\frac{5}{6}÷\frac{10}{3}=\frac{5}{6}×\frac{3}{10}=\frac{1}{4}$
$3÷\frac{1}{3}=3×3=9$
$\frac{8}{7}÷4=\frac{8}{7}×\frac{1}{4}=\frac{2}{7}$
$\frac{8}{15}÷4=\frac{8}{15}×\frac{1}{4}=\frac{2}{15}$
$6÷\frac{3}{5}=6×\frac{5}{3}=10$
$9÷\frac{3}{5}=9×\frac{5}{3}=15$
$\frac{5}{9}÷10=\frac{5}{9}×\frac{1}{10}=\frac{1}{18}$
$6÷\frac{3}{4}=6×\frac{4}{3}=8$
$\frac{7}{10}÷\frac{2}{5}=\frac{7}{10}×\frac{5}{2}=\frac{7}{4}$
$\frac{3}{4}÷6=\frac{3}{4}×\frac{1}{6}=\frac{1}{8}$
$1÷\frac{1}{2}=1×2=2$
$\frac{2}{3}÷4=\frac{2}{3}×\frac{1}{4}=\frac{1}{6}$
$\frac{1}{2}÷1=\frac{1}{2}$
$4÷\frac{2}{3}=4×\frac{3}{2}=6$
$\frac{2}{7}÷\frac{1}{14}=\frac{2}{7}×14=4$
$\frac{1}{3}÷\frac{1}{5}=\frac{1}{3}×5=\frac{5}{3}$
$\frac{8}{15}÷\frac{4}{5}=\frac{8}{15}×\frac{5}{4}=\frac{2}{3}$
$\frac{9}{7}÷\frac{8}{9}=\frac{9}{7}×\frac{9}{8}=\frac{81}{56}$
$\frac{1}{20}÷\frac{3}{10}=\frac{1}{20}×\frac{10}{3}=\frac{1}{6}$
$\frac{3}{8}÷\frac{3}{4}=\frac{3}{8}×\frac{4}{3}=\frac{1}{2}$
$\frac{3}{7}÷\frac{1}{21}=\frac{3}{7}×21=9$
$\frac{4}{5}÷\frac{9}{10}=\frac{4}{5}×\frac{10}{9}=\frac{8}{9}$