Question

Выполните действие!Срочно

Answer 1

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

Answer 2

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