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Автор - Cotil

5-(3-1 7/20):9/25+1/8
помогите пожалуйста!

Ответ

Автор - kruglenkonata804

5-(3-1 7/20):9/25+1/8=13/24

1)3-1 7/20=2 20/20-1 7/20=1 13/20

2)1 13/20:9/25=33/20*25/9=55/12

3)5-55/12=60/12-55/12=5/12

4)5/12+1/8=(5*2+1*3)/24=13/24

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