Автор - EkaterinaOrlova8913

Решите пример.
(1/15:0,5-0,4):(0,8×2,5)

Ответ

Автор - ocloc2
Решение
=(1/15:1/2-2/5):2=(1/15*2-2/5)*1/2=(2/15-2/5)*1/2=-4/15*1/2=-2/15

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