1.直接写出得数。
$1-\frac{1}{9}=$
$\frac{4}{5}+\frac{1}{5}=$
$\frac{3}{4}+3.25=$
$\frac{1}{8}+\frac{1}{2}=$
$1+\frac{3}{11}=$
$\frac{7}{6}-\frac{5}{6}=$
$\frac{4}{5}-0.6=$
$\frac{1}{2}-\frac{1}{6}=$
$2.4-\frac{3}{5}=$
$\frac{5}{8}+0.375=$
$\frac{11}{12}-\frac{13}{24}=$
$\frac{5}{4}-\frac{2}{5}=$
$\frac{5}{36}+\frac{7}{36}=$
$10-\frac{4}{3}=$
$\frac{3}{10}-\frac{1}{5}=$
$0.6+\frac{2}{5}=$
$\frac{9}{14}-\frac{3}{14}=$
$\frac{1}{2}+\frac{1}{7}=$
$0.125+\frac{3}{8}=$
$\frac{5}{8}-\frac{1}{4}=$

1.$\frac{8}{9}$ 1 4 $\frac{5}{8}$
$1\frac{3}{11}$ $\frac{1}{3}$ 0.2 $\frac{1}{3}$
1.8 1 $\frac{3}{8}$ $\frac{17}{20}$
$\frac{1}{3}$ $8\frac{2}{3}$ $\frac{1}{10}$ 1
$\frac{3}{7}$ $\frac{9}{14}$ $\frac{1}{2}$ $\frac{3}{8}$

识别出错

2.1 $\frac{1}{5}$ 0
$\frac{4}{9}$ $\frac{17}{36}$ 11
$\frac{1}{30}$ $1\frac{1}{2}$ $\frac{5}{13}$