$\frac{5}{6} \div \frac{3}{2} =$ 0.76×5 = 70÷70% =
$\frac{2}{5} \times \frac{15}{19} =$ 10 - 0.92 = $\frac{1}{7} + \frac{3}{4} =$
0.9÷0.03 = $\frac{3}{4} \times 50\% =$ 18÷0.05 =
6.8 - 2.94 = 15÷$\frac{9}{10} =$ $\frac{7}{10} + 20\% =$
$\frac{4}{7} \times \frac{2}{5} =$ 138 + 199 = $\frac{5}{9} \times \frac{14}{3} =$
$\frac{2}{15} \div \frac{3}{5} =$ $\frac{9}{14} - \frac{3}{7} =$ $\frac{5}{18} \div \frac{3}{2} =$
$\frac{2}{7} \times \frac{9}{8} =$ 0.36 + 0.24 = 2.1×0.6 =
$\frac{1}{2} + \frac{2}{3} =$ 3÷$\frac{31}{9} =$ 2.4÷0.25 =
1.4÷0.28 = $\frac{8}{3} - \frac{8}{5} =$ $\frac{2}{3} \times \frac{5}{12} =$
125×4 = $\frac{20}{21} \times \frac{3}{4} =$ 4 - $\frac{3}{4} =$

$\frac{5}{9}$ 3.8 100
$\frac{6}{19}$ 9.08 $\frac{25}{28}$
30 $\frac{3}{8}$ 360
3.86 $\frac{50}{3}$ $\frac{9}{10}$
$\frac{8}{35}$ 337 $\frac{70}{27}$
$\frac{2}{9}$ $\frac{3}{14}$ $\frac{5}{27}$
$\frac{9}{28}$ 0.6 1.26
$\frac{7}{6}$ $\frac{27}{31}$ 9.6
5 $\frac{16}{15}$ $\frac{5}{18}$
500 $\frac{5}{7}$ $3\frac{1}{4}$

6 : $x$ = 3 : 15 $\frac{1}{60} : \frac{1}{45} = x : 8$ $\frac{1}{2} : \frac{1}{5} = \frac{1}{4} : x$

$x = 30$ $x = 6$ $x = \frac{1}{10}$