Question

9 1/4*8-1 2/3*5 1/2-2 4/5*2 11/12

Answer 1

9 1/4*8=37/4*8=74

1 2/3*5 1/2=5/3*11/2=55/6

2 4/5*2 11/12=14/5*35*12=49/6

74-55/6-49/6=340/6=56 4/6=56 2/3

Вот)