2 ВАРИАНТ!! Помогите

Question

2 ВАРИАНТ!! Помогите

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Answer 1

1. а) 8/9:5/7=8/9*7/5=56/45=1 11/45
б) 4 1/11=44/11, 2 1/5=11/5, 44/11:11/5=44/11*5/11=220/121
2.(2/3+1/6+14/9=6+2+14/9=22/9:7/21=22/9*21/7=462/63
3.9:3=3=1/8=3*8=24