$\frac{2}{3} \div \frac{8}{9} =$ 2.4 + 0.56 = 300 \div 15 =
$177 \times \frac{1}{3} =$ $\frac{3}{4} \times \frac{32}{33} =$ 4 - 2.31 =
$\frac{3}{8} + \frac{3}{4} =$ 72 \div 0.8 = $\frac{2}{7} \times \frac{3}{20} =$
$\frac{4}{5} \times \frac{3}{4} =$ $3 - \frac{3}{2} =$ $\frac{5}{12} \div \frac{9}{10} =$
1.9 - 0.09 = $\frac{5}{9} \div \frac{5}{11} =$ 1.5 \times 400 =
3.75 \times 4 = $\frac{3}{5} + \frac{9}{20} =$ 85 \div 20 =
$\frac{2}{5} + \frac{7}{10} =$ $\frac{1}{4} \div \frac{1}{64} =$ $\frac{3}{5} \times \frac{10}{39} =$
130 \div 6.5 = $\frac{13}{14} + \frac{3}{7} =$ 190 - 98 =
$\frac{5}{12} - \frac{1}{4} =$ 7.5 \times 4\% = 0.34 \div \frac{1}{2} =
$\frac{5}{4} \times \frac{7}{10} =$ $\frac{7}{27} \div \frac{7}{9} =$ $\frac{15}{23} + \frac{18}{23} =$

$\frac{3}{4}$ 2.96 20 59 $\frac{8}{11}$ 1.69 $\frac{9}{8}$ 90 $\frac{3}{70}$ $\frac{3}{5}$ $\frac{3}{2}$ $\frac{25}{54}$ 1.81 $\frac{11}{9}$ 600 15 $\frac{21}{20}$ 4.25 $\frac{11}{10}$ 16 $\frac{2}{13}$ 20 $\frac{19}{14}$ 92 $\frac{1}{6}$ 0.3 0.68 $\frac{7}{8}$ $\frac{1}{3}$ $\frac{33}{23}$

1.4 : 2 = x : 40 $\frac{1}{10} : x = \frac{1}{8} : \frac{1}{4}$ x : 18 = 5 : 4

$x = 28$ $x = \frac{1}{5}$ $x = 22.5$