Предмет: Математика, автор: pobezhimova666

НАйдите значение выражения: (3/7 + 9/14) * 28

Ответы

Автор ответа: Аноним

$( \frac{3}{7}+ \frac{9}{14})*28=30$

1) $\frac{3}{7} + \frac{9}{14}= \frac{2*3+9}{14}= \frac{15}{14}$

2) $\frac{15}{14}*28= \frac{15}{1}*2=30$

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