Question

срочно даю 3000 балов!!!!!!​

Answer 1

Ответ:

Пошаговое объяснение:

$1) 3\frac{1}{3} (-2\frac{3}{4} :5\frac{1}{2} ) = \frac{10}{3} (-\frac{11}{4} :\frac{11}{2})= \frac{10}{3} (-\frac{11}{4}*\frac{2}{11} )=\frac{10}{3} (-\frac{1}{2} ) = -\frac{5}{3} =-1\frac{2}{3} \\ \\ 2) 2\frac{2}{5} :(1\frac{11}{15} -3\frac{2}{5} )*(-\frac{5}{6} ) = 2\frac{2}{5} :(1\frac{11}{15} -3\frac{6}{15})*(-\frac{5}{6} ) = 2\frac{2}{5} :(-1\frac{2}{3} )*(-\frac{5}{6}) = \frac{12}{5} *(-\frac{3}{5} )*(-\frac{5}{6} )=\frac{12}{5} *\frac{1}{2} =\frac{6}{5} =1\frac{1}{5}$