"4 целых 1/9*2 целых 5/8+ 4 целых 1/9*1 целую 1/8"

4 1/9 * 2 5/8 + 4 1/9 * 1 1/8 = 15 5/12
1) 4 1/9 * 2 5/8 = 37/9 * 21/8 = (37*7)/(3*8) = 259/24 = 10 19/24
2) 4 1/9 * 1 1/8 = 37/9 * 9/8 = 37/8 = 4 5/8
3) 10 19/24 + 4 5/8 = 10 19/24 + 4 15/24 = 14 34/24 = 15 10/24 = 15 5/12