Найдите значения выражений

А)
$\frac{ \frac{1}{2} }{ \frac{3}{4} } = \frac{1}{2} * \frac{4}{3} = \frac{2}{3}$
$\frac{ \frac{2}{3} }{ \frac{1}{3} } = \frac{2}{3} * \frac{3}{1} = 2$
$\frac{ \frac{1}{4} }{ \frac{3}{8} } = \frac{1}{4} * \frac{8}{3} = \frac{2}{3}$

б)
$\frac{1}{ \frac{2}{3} } = 1 * \frac{3}{2} = 1 \frac{1}{2}$
$\frac{1}{ \frac{1}{7} } = 1 * 7 = 7$
$\frac{1}{ \frac{5}{2} } = 1 * \frac{2}{5} = \frac{2}{5}$

в)
$\frac{ \frac{8}{4} }{5} = \frac{8}{4} * \frac{1}{5} = \frac{2}{1} * \frac{1}{5} = \frac{2}{5}$
$\frac{ \frac{2}{3} }{4} = \frac{2}{3} * \frac{1}{4} = \frac{1}{6}$
$\frac{ \frac{2}{5} }{2} = \frac{2}{5} * \frac{1}{2} = \frac{1}{5}$