Question

помогите пожалуйста.

Answer 1

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Answer 2

1)=48/25:(-48:5)•15/4=-1/5•15/4=-3/4
2)=-56/42:56/6•7/4=-1/7•7/4=-1/4
3)=(42/36-3/36-1/36)•72/34=38/36•
72/34=38/17=2 4/17
4)=(48/42-3/42-1/42)•12/46=44/42•
12/46=44/161