计算下面各题,能简算的要简算。
$\frac{19}{20}+(\frac{4}{5}-\frac{7}{40})$
$12-\frac{3}{4}+\frac{1}{4}$
$\frac{1}{7}+\frac{13}{15}+\frac{6}{7}$
$\frac{29}{21}-(\frac{8}{21}-\frac{1}{4})$
$\frac{7}{6}-\frac{4}{5}-\frac{1}{5}$
$\frac{4}{5}+\frac{3}{10}-\frac{11}{20}$
$\frac{3}{7}+\frac{5}{9}+\frac{4}{7}$
$\frac{3}{10}+\frac{3}{5}+\frac{2}{5}+\frac{7}{10}$
$\frac{17}{13}-\frac{3}{8}-\frac{5}{8}$
$\frac{6}{7}+(\frac{4}{5}-\frac{3}{10})$
$\frac{7}{10}-\frac{1}{4}+\frac{3}{10}-\frac{3}{4}$
$\frac{5}{12}+\frac{11}{16}-\frac{5}{16}+\frac{7}{12}$
$\frac{5}{6}-\frac{1}{3}+\frac{2}{5}$
$\frac{1}{4}+\frac{5}{9}-\frac{1}{3}$
$2.5-\frac{1}{4}-\frac{3}{4}$
$1-(\frac{7}{12}-\frac{1}{4})$
$\frac{1}{4}+\frac{13}{15}+\frac{7}{4}+\frac{2}{15}$
$5\frac{11}{35}-(\frac{11}{35}+\frac{6}{13})-\frac{7}{13}$

$\frac{19}{20}+(\frac{4}{5}-\frac{7}{40})=\frac{63}{40}$
$12-\frac{3}{4}+\frac{1}{4}=\frac{23}{2}$
$\frac{1}{7}+\frac{13}{15}+\frac{6}{7}=\frac{28}{15}$
$\frac{29}{21}-(\frac{8}{21}-\frac{1}{4})=\frac{5}{4}$
$\frac{7}{6}-\frac{4}{5}-\frac{1}{5}=\frac{1}{6}$
$\frac{4}{5}+\frac{3}{10}-\frac{11}{20}=\frac{11}{20}$
$\frac{3}{7}+\frac{5}{9}+\frac{4}{7}=\frac{14}{9}$
$\frac{3}{10}+\frac{3}{5}+\frac{2}{5}+\frac{7}{10}=2$
$\frac{17}{13}-\frac{3}{8}-\frac{5}{8}=\frac{4}{13}$
$\frac{6}{7}+(\frac{4}{5}-\frac{3}{10})=\frac{19}{14}$
$\frac{7}{10}-\frac{1}{4}+\frac{3}{10}-\frac{3}{4}=0$
$\frac{5}{12}+\frac{11}{16}-\frac{5}{16}+\frac{7}{12}=\frac{11}{8}$
$\frac{5}{6}-\frac{1}{3}+\frac{2}{5}=\frac{17}{36}$
$\frac{1}{4}+\frac{5}{9}-\frac{1}{3}=1.5$
$2.5-\frac{1}{4}-\frac{3}{4}=\frac{2}{3}$
$1-(\frac{7}{12}-\frac{1}{4})=3$
$\frac{1}{4}+\frac{13}{15}+\frac{7}{4}+\frac{2}{15}=4$
$5\frac{11}{35}-(\frac{11}{35}+\frac{6}{13})-\frac{7}{13}=4$