Question

9/14*(-2/3)+(-2/3)*1/28+(-2/3)*3/7 calculat este ??

Answer 1

9/14*(-2/3)+(-2/3)*1/28+(-2/3)*3/7=
=-3/7-1/42-2/7=
=-5/7-1/42=(-30-1)/42=-31/42

Answer 2

9/14·(-2/3)+1/28·(-2/3)+3/7·(-2/3)=
(9/14+1/28+3/7)·(-2/3)=
(31/28)·(-2/3)=-62/84=-31/42;