1. 直接写出得数。
$35÷\frac{5}{7}=$
$0.75+\frac{1}{4}=$
$\frac{1}{4}×3.2=$
$\frac{3}{8}÷\frac{5}{2}=$
$\frac{2}{7}+\frac{5}{7}×7=$
$\frac{8}{9}×\frac{3}{8}=$
$\frac{2}{11}×3=$
$2.1÷\frac{3}{7}=$
$\frac{3}{8}÷8÷\frac{3}{8}=$
$\frac{1}{5}+\frac{3}{5}÷\frac{3}{5}+\frac{1}{5}=$

1. 49 1 0.8 $\frac{3}{20}$ $5\frac{2}{7}$ $\frac{1}{3}$ $\frac{6}{11}$ 4.9 $\frac{1}{8}$ $1\frac{2}{5}$

2. 计算下列各题,能用简便方法计算的要用简便方法。
$\frac{2}{9} × 0.375 ÷ \frac{6}{7}$
$1.25 × \frac{9}{10} × 8$
$98 × \frac{6}{97}$
$24 ÷ ( \frac{1}{4} + \frac{1}{6} )$
$\frac{2}{7} × 1.2 ÷ ( \frac{6}{7} × 3.6 )$
$0.5 ÷ [ \frac{1}{3} - ( \frac{5}{6} - \frac{2}{3} ) ]$

2. $\frac{7}{72}$ 9 $6\frac{6}{97}$ $\frac{288}{5}$ $\frac{1}{9}$ 3