Вычислите (7/9-1/6):2/9*21/22

Question

Вычислите (7/9-1/6):2/9*21/22

Answer 1

7/9-1/6=14/18-3/18=11/18
11/18:2/9=11/18*9/2=11/4
11/4*21/22=21/8=2 5/8