Question

Обчистити:
(-1 3/7*4 2/3+1 7/9)*(-3/4)

Answer 1

(-1 3/7*4 2/3+1 7/9)*(-3/4)=(-10/7* 14/3 + 16/9)*(-3/4)=(-20/3+16/9)*(-3/4)=(-60/9+16/9)*(-3/4)=-44/9*(-3/4)=11/3=3 2/3

Answer 2

Ответ:

$10 frac{1}{3}$

Решение:

$( - 1 frac{3}{7} times 4 frac{2}{3} + 1 frac{7}{9} ) times ( - frac{3}{4} ) = ( - frac{10 times 14}{3 times 3} + frac{16}{9} ) times ( - frac{3}{4} ) = frac{10 times 14 times 3}{3 times 3 times 4} - frac{16 times 3}{9 times 4} = frac{5 times 7}{3} - frac{4}{3} = frac{35 - 4}{3} = frac{31}{3} = 10 frac{1}{3}$