Предмет: Математика, автор: juliaklubnysha

помните решить пример (30:27-1/3)*21/7+2/5

Ответы

Автор ответа: ArthurKirkland

30:27= 1 3/30 1 3/30-1/3=23/30 23/30*21/7=483/210=2 53/210 2 53/210+2/5= 2 137/210 Ответ: 2 137/210

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