Question

Выполните действие!Срочно

Answer 1

Г) = - 55/7*(-7/66)=5/6
Д)= - 35/8*4/21= - 5/6

Answer 2

$-7\frac{6}{7}:(-9\frac{3}{7})=-6:(-\frac{27}{7})=\frac{-6}{-\frac{27}{7}}=\frac{42}{27} =\frac{14}{9} \\ \\ -4 \frac{3*4}{8*21}=-4\frac{12}{168}=-\frac{48}{168}=-\frac{12}{48}=-\frac{6}{21}=-\frac{2}{7}$