(3,75 - 2,8) : 1,9 + (5 4/9 + 3/9) : 2 1/6 = 0,5 + 52/9 х 6/13 = 5/10 + 80/30 = 15/30 + 80/30 = 95/30 = 3 целых 1\6
(3,75 - 2,8) : 1,9 + (5 4/9 + 3/9) : 2 1/6 = 0,5 + 52/9 х 6/13 = 5/10 + 80/30 = 15/30 + 80/30 = 95/30 = 3 целых 1\6