$20\div\frac{5}{24}=$ $\frac{3}{35}\times\frac{7}{15}=$ $0.88\times99 + 0.88=$
$0.3 + 37\%=$ $\frac{7}{68}\div\frac{7}{18}=$ $1 - (\frac{9}{14} - \frac{5}{14})=$
$10\div50\%=$ $\frac{1}{3} + \frac{40}{9}=$ $3 - 0.25 - 0.75=$
$0.35\times6=$ $3 - 45\%=$ $24\times(3.2 - 1.2)=$
$0.236\div2=$ $\frac{8}{9}\div\frac{16}{17}=$ $3 + 3\div\frac{1}{3}=$
$0.6\times\frac{10}{3}=$ $\frac{7}{10} + 30\%=$ $\frac{2}{5} - \frac{2}{5}\times\frac{1}{2}=$
$\frac{5}{6}\div\frac{2}{3}=$ $\frac{5}{14} - \frac{2}{7}=$ $(37.5\% - \frac{3}{8})\times\frac{3}{4}=$
$2 - 51\%=$ $\frac{3}{4} + \frac{7}{8}=$ $0.6\times3\div0.45=$
$24\div\frac{12}{5}=$ $\frac{3}{8}\times\frac{2}{3}=$ $2.5\times(1\div5)=$
$1.68 + 3.75=$ $21\div\frac{7}{12}=$ $3.72\div1.25\div0.8=$

一、96 $\frac{1}{25}$ 88
0.67 $\frac{9}{34}$ $\frac{5}{7}$
20 $\frac{43}{9}$ 2
2.1 2.55 48
0.118 $\frac{17}{18}$ 12
2 1 $\frac{1}{5}$
$\frac{5}{4}$ $\frac{1}{14}$ 0
1.49 $\frac{13}{8}$ 4
10 $\frac{1}{4}$ 0.5
5.43 36 3.72

$\frac{6}{x}=\frac{5}{6}:\frac{1}{3}$ $0.25:75 = 0.8:x$ $7.5:x = 24:12$

二、$x = \frac{12}{5}$ $x = 240$ $x = 3.75$