1 9/35:(1 1/5+2/3); (11 5/8+ 7 1/6):3 5/12; (8 7/12-2 5/8):2 1/6

Пошаговое объяснение:

1. 44/35÷ (6/5+2/3)=44/35÷ 15/28=11/7×3/7=33/49;

2. (11+7)+(5/8+1/6)÷41/12=(18+19/24)×12/41=451/24×12/41=11/2=5 1/2

3. (103/12-21/8)×1/2×1/6=143/24×1/2×1/6=143/288