Помогите с примерами!

Question

Помогите с примерами!

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Answer 1

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Answer 2

1) (4 1/12*1 5/7-5 2/9):2 2/3=2/3
     4 1/12*1 5/7=49/12*12/7=7
     7-5 2/9=6 9/9-5 2/9=1 7/9
     1 7/9:2 2/3=16/9:8/3=16/9*3/8=2/3
2) 1 8/9:(3 1/6-1 3/4)=1 1/3
     3 1/6-1 3/4=2 7/6-1 3/4=2 14/12-1 9/12=1 5/12
     1 8/9:1 5/12=17/9:17/12=17/9*12/17=4/3=1 1/3