Предмет: Математика, автор: Леонардио

Знайти значення виразу 15:(3 12/17+2 5/17)+(4,2-2 3/5):4 =

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Автор ответа: anastasyacwetkova

0

3 12/17 +2 5/17=6
15:6=15/6
4,2-2 3/5=42/10-13/5=42/10-26/10=16/10=8/5
8/5:4=8/5х1/4=8/20=2/5
15/6+2/5=75/30+12/30=87/30=2 27/30=2 9/10=2,9

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