14．计算下面各题．
| 35×$\frac{5}{7}$×$\frac{3}{5}$ | $\frac{16}{27}$×$\frac{5}{8}$×$\frac{9}{10}$ | $\frac{9}{26}$÷$\frac{3}{7}$÷$\frac{14}{13}$ |
| $\frac{7}{10}$÷$\frac{8}{9}$×$\frac{5}{21}$ | $\frac{3}{5}$÷4÷$\frac{1}{12}$ | $\frac{6}{5}$×$\frac{2}{3}$÷$\frac{8}{15}$ |
13．直接写出得数．
0 158536 158544 158550 158554 158560 158562 158566 158572 158574 158580 158586 158590 158592 158596 158602 158604 158610 158614 158616 158620 158622 158626 158628 158630 158631 158632 158634 158635 158636 158638 158640 158644 158646 158650 158652 158656 158662 158664 158670 158674 158676 158680 158686 158692 158694 158700 158704 158706 158712 158716 158722 158730 199269
| $\frac{4}{15}$×5= | 4×$\frac{1}{3}$= | 1-$\frac{5}{9}$= | $\frac{7}{8}$×1= |
| $\frac{1}{2}$×$\frac{4}{7}$= | $\frac{11}{6}$÷22= | $\frac{2}{3}$×$\frac{2}{3}$= | $\frac{3}{5}$÷$\frac{5}{3}$= |
| 8÷$\frac{2}{5}$= | $\frac{1}{2}$+$\frac{1}{3}$= | 6÷$\frac{1}{6}$= | $\frac{1}{6}$×$\frac{2}{9}$= |
| 0×$\frac{5}{6}$= | $\frac{7}{10}$-$\frac{3}{10}$= | $\frac{2}{5}$×$\frac{3}{4}$= | $\frac{3}{4}$÷2= |
| $\frac{3}{4}$÷$\frac{1}{4}$= | 1÷$\frac{5}{6}$= | $\frac{1}{2}$÷3= | 21÷$\frac{3}{7}$= |