1.直接写出得数。（每题1★）
$\frac{4}{9}÷2=$
$\frac{3}{7}÷3=$
$\frac{7}{12}×\frac{12}{7}=$
$\frac{6}{7}÷2=$
$\frac{8}{7}×\frac{5}{64}=$
$\frac{2}{3}÷6=$
$\frac{65}{67}÷13=$
$\frac{9}{10}÷3=$
$\frac{2}{3}÷3=$
$\frac{1}{8}×\frac{8}{9}=$
$\frac{1}{5}÷3=$
$\frac{10}{11}÷5=$
$\frac{8}{15}÷4=$
$\frac{6}{11}÷3=$
$\frac{4}{15}÷8=$
$\frac{15}{16}×\frac{8}{35}=$
$\frac{5}{13}÷3=$
$\frac{1}{2}÷5=$
$\frac{4}{5}÷2=$
$\frac{1}{4}÷4=$

1.$\frac{2}{9}$ $\frac{1}{7}$ 1 $\frac{3}{7}$
$\frac{5}{56}$ $\frac{1}{9}$ $\frac{5}{67}$ $\frac{3}{10}$
$\frac{2}{9}$ $\frac{1}{9}$ $\frac{1}{15}$ $\frac{2}{11}$
$\frac{2}{15}$ $\frac{2}{11}$ $\frac{1}{30}$ $\frac{3}{14}$
$\frac{5}{39}$ $\frac{1}{10}$ $\frac{2}{5}$ $\frac{1}{16}$

识别出错

2.7 40 $\frac{1}{2}$
100 $\frac{14}{9}$ $\frac{11}{4}$

3.解方程。（每题3★）
$6x=\frac{3}{20}$
$7x-10=7.5$
$12x=\frac{8}{5}$

3.$x=\frac{1}{40}$ $x=2.5$ $x=\frac{2}{15}$