Найдите значения выражений:
а)
$\frac{\frac{1}{2}}{\frac{3}{4}}$,
$\frac{\frac{2}{3}}{\frac{1}{3}}$,
$\frac{\frac{1}{4}}{\frac{3}{8}}$;
б)
$\frac{1}{\frac{2}{3}}$,
$\frac{1}{\frac{1}{7}}$,
$\frac{1}{\frac{5}{2}}$;
в)
$\frac{\frac{8}{4}}{5}$,
$\frac{\frac{2}{3}}{4}$,
$\frac{\frac{2}{5}}{2}$.
$\frac{\frac{1}{2}}{\frac{3}{4}} = \frac{1}{2} * \frac{4}{3} = \frac{1}{1} * \frac{2}{3} = \frac{2}{3}$;
$\frac{\frac{2}{3}}{\frac{1}{3}} = \frac{2}{3} * \frac{3}{1} = \frac{2}{1} * \frac{1}{1} = 2$;
$\frac{\frac{1}{4}}{\frac{3}{8}} = \frac{1}{4} * \frac{8}{3} = \frac{1}{1} * \frac{2}{3} = \frac{2}{3}$.
$\frac{1}{\frac{2}{3}} = 1 * \frac{3}{2} = 1\frac{1}{2}$;
$\frac{1}{\frac{1}{7}} = 1 * \frac{7}{1} = 7$;
$\frac{1}{\frac{5}{2}} = 1 * \frac{2}{5} = \frac{2}{5}$.
$\frac{\frac{8}{4}}{5} = \frac{8}{4} * \frac{1}{5} = \frac{8}{20} = \frac{2}{5}$;
$\frac{\frac{2}{3}}{4} = \frac{2}{3} * \frac{1}{4} = \frac{2}{12} = \frac{1}{6}$;
$\frac{\frac{2}{5}}{2} = \frac{2}{5} * \frac{1}{2} = \frac{1}{5} * \frac{1}{1} = \frac{1}{5}$.
Пожауйста, оцените решение
