$\frac{5}{6}\div\frac{11}{18}=$ 3.75 - 0.65 = $\frac{15}{7}\times\frac{7}{8}=$
365 + 635 = $\frac{7}{20}\div\frac{1}{5}=$ $\frac{4}{7}-\frac{1}{8}=$
$\frac{5}{6}\times\frac{34}{35}=$ $\frac{3}{4}+\frac{7}{20}=$ 2.3÷0.05 =
$\frac{5}{16}\div\frac{3}{8}=$ 0.314×4 = $\frac{7}{12}+\frac{1}{2}=$
0.62×0.5 = $\frac{4}{5}+\frac{1}{15}=$ $\frac{3}{8}\times\frac{40}{9}=$
$\frac{5}{4}-\frac{1}{4}=$ $\frac{7}{3}\times\frac{9}{28}=$ $\frac{4}{9}+\frac{3}{4}=$
$\frac{9}{5}\div\frac{3}{10}=$ $\frac{14}{9}-\frac{4}{3}=$ 6.5×40 =
$\frac{2}{5}-\frac{8}{25}=$ 98.5 + 3.5 = 6800÷17 =
1 - 71% = 15.7÷3.14 = $\frac{5}{7}+\frac{3}{7}=$
$\frac{35}{8}\times\frac{1}{25}=$ $\frac{8}{5}-\frac{9}{10}=$ $\frac{8}{9}\div\frac{5}{18}=$

$\frac{15}{11}$ 3.1 $\frac{15}{8}$
1000 $\frac{7}{4}$ $\frac{25}{56}$
$\frac{17}{21}$ $\frac{11}{10}$ 46
$\frac{5}{6}$ 1.256 $\frac{13}{12}$
0.31 $\frac{13}{15}$ $\frac{5}{3}$
1 $\frac{3}{4}$ $\frac{43}{36}$
6 $\frac{2}{9}$ 260
$\frac{2}{25}$ 102 400
0.29 5 $\frac{8}{7}$
$\frac{7}{40}$ $\frac{7}{10}$ $\frac{16}{5}$

$18×42 - 1308÷12 1.2×7 - 4.58 - 0.42 11÷[\frac{6}{11}\times(75\%+\frac{1}{6})]$

647 3.4 22