решите пример 8 целых 1/6:(-1/2-2/3)+5*1целую 2/9​

8 1/6 : (-1/2 - 2/3) + 5 · 1 2/9 = - 8/9

1) - 1/2 - 2/3 = - (3/6 + 4/6) = - 7/6

2) 8 1/6 : (-7/6) = 49/6 · (-6/7) = - 49/7 = - 7

3) 5 · 1 2/9 = 5 · 11/9 = 55/9 = 6 1/9

4) - 7 + 6 1/9 = - (7 - 6 1/9) = - (6 9/9 - 6 1/9) = - 8/9