(6целых 3/8-2целых 3/4)*(-4)+7/18*9=?
помогите)))
51/8 - 11/4 = 51/8 - 22/8= 29/8
29/8 х -4 = - 29/2
7/18 х 9 = 7/2
- 29/2 + 7/2 = -22/2 = - 11