Предмет: Математика, автор: sorvaneh346709

на прополку 27 поля требуется 3 дня.Какую часть поля смогут прополоть за 5 дней?

Ответы

Автор ответа: MISSkamilka

2/7*3=2/21-части поля за 1 день

2*5/21=10/21 - за 5 дней

Автор ответа: kost

1. 2/7 : 3= 2/7*3=2/21

2. 2/21 *5= 10/21

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