1. 直接写出得数。
实际用时：分钟
$\frac{15}{2}×\frac{3}{5}=$
$\frac{7}{12}×36=$
$\frac{7}{8}×\frac{6}{7}=$
$\frac{4}{7}×\frac{3}{4}=$
$\frac{1}{9}×8=$
$\frac{13}{44}×\frac{11}{13}=$
$\frac{3}{14}×\frac{7}{9}=$
$\frac{29}{32}×\frac{8}{29}=$
$\frac{7}{15}÷\frac{3}{10}=$
$\frac{5}{12}÷\frac{5}{9}=$
$2÷\frac{9}{10}=$
$\frac{1}{3}÷\frac{2}{9}=$
$\frac{8}{9}÷\frac{4}{5}=$
$\frac{49}{25}÷\frac{7}{10}=$
$\frac{7}{8}÷\frac{14}{15}=$
$\frac{9}{25}÷\frac{2}{15}=$
$\frac{8}{9}÷9=$
$8÷\frac{2}{5}=$
$\frac{3}{5}÷\frac{3}{10}=$
$\frac{4}{15}÷\frac{8}{21}=$
$\frac{6}{7}÷\frac{1}{6}=$
$\frac{7}{12}÷\frac{3}{4}=$
$\frac{6}{7}÷\frac{5}{6}=$
$0÷\frac{3}{4}=$
$21÷\frac{3}{5}=$
$\frac{5}{6}÷\frac{25}{36}=$
$\frac{4}{15}÷\frac{2}{5}=$
$2÷\frac{5}{3}=$
$\frac{4}{9}÷\frac{2}{3}=$
$\frac{3}{2}÷\frac{6}{7}=$
$\frac{5}{4}÷\frac{4}{5}=$
$\frac{2}{3}÷\frac{3}{2}=$
$\frac{1}{6}÷8=$
$\frac{3}{4}÷\frac{1}{4}=$
$\frac{5}{8}÷2=$
$\frac{1}{7}×\frac{1}{8}=$
$0÷\frac{98}{99}=$
$1\frac{3}{5}-\frac{2}{5}=$
$\frac{7}{8}+\frac{3}{8}=$
$\frac{8}{15}×\frac{5}{16}=$

1. $\frac{9}{2}\quad 21\quad \frac{3}{4}\quad \frac{3}{7}$
$\frac{8}{9}\quad \frac{1}{4}\quad \frac{1}{6}\quad \frac{1}{4}$
$\frac{14}{9}\quad \frac{3}{4}\quad \frac{10}{9}\quad \frac{3}{2}$
$\frac{10}{9}\quad \frac{14}{5}\quad \frac{15}{16}\quad \frac{27}{10}$
$\frac{8}{81}\quad 20\quad 2\quad \frac{7}{10}$
$\frac{36}{7}\quad \frac{7}{9}\quad \frac{36}{35}\quad 0$
$35\quad \frac{6}{5}\quad \frac{2}{3}\quad \frac{6}{5}$
$\frac{2}{3}\quad \frac{7}{4}\quad \frac{25}{16}\quad \frac{4}{9}$
$\frac{1}{48}\quad 3\quad \frac{5}{16}\quad \frac{1}{56}$
$0\quad \frac{6}{5}\quad \frac{5}{4}\quad \frac{1}{6}$

2. 计算下面各题。
$10×\frac{36}{17}×\frac{34}{5}$
$\frac{1}{15}×\frac{8}{23}+\frac{1}{23}×\frac{7}{15}$
$\frac{11}{5}×\frac{3}{7}-\frac{4}{5}÷\frac{7}{3}$
$\frac{25}{16}÷\frac{5}{4}÷\frac{15}{8}$
$\frac{2}{3}-\frac{3}{4}×(1-\frac{5}{6})$
$(\frac{1}{2}-\frac{1}{3}+\frac{1}{4})÷\frac{1}{48}$

2. $144\quad \frac{1}{23}\quad \frac{3}{5}$
$\frac{2}{3}\quad \frac{13}{24}\quad 20$