Найдите значение выражения:
1) $2\frac{1}{3} : 2\frac{2}{3} * 1\frac{3}{5}$;
2) $2\frac{1}{4} * \frac{12}{13} : 3\frac{3}{8}$;
3) $1\frac{1}{9} * 2\frac{1}{5} : 7\frac{1}{3}$;
4) $3\frac{2}{3} : 7\frac{1}{3} * \frac{2}{5}$.
$2\frac{1}{3} : 2\frac{2}{3} * 1\frac{3}{5} = \frac{7}{3} : \frac{8}{3} * \frac{8}{5} = \frac{7}{3} * \frac{3}{8} * \frac{8}{5} = \frac{7}{1} * \frac{1}{1} * \frac{1}{5} = \frac{7}{5} = 1\frac{2}{5}$
$2\frac{1}{4} * \frac{12}{13} : 3\frac{3}{8} = \frac{9}{4} * \frac{12}{13} : \frac{27}{8} = \frac{9}{4} * \frac{12}{13} * \frac{8}{27} = \frac{1}{1} * \frac{1}{13} * \frac{8}{1} = \frac{8}{13}$
$1\frac{1}{9} * 2\frac{1}{5} : 7\frac{1}{3} = \frac{10}{9} * \frac{11}{5} : \frac{22}{3} = \frac{10}{9} * \frac{11}{5} * \frac{3}{22} = \frac{1}{3} * \frac{1}{1} * \frac{1}{1} = \frac{1}{3}$
$3\frac{2}{3} : 7\frac{1}{3} * \frac{2}{5} = \frac{11}{3} : \frac{22}{3} * \frac{2}{5} = \frac{11}{3} * \frac{3}{22} * \frac{2}{5} = \frac{1}{1} * \frac{1}{1} * \frac{1}{5} = \frac{1}{5}$
Пожаулйста, оцените решение
