Предмет: Математика, автор: beloglazova65055

А) - 3/5*5/13-2/5*5/13=
Б)3/4*7/9-3/4 *(7/9-2/3)=​

Ответы

Автор ответа: dora7369
0

-3/5*5/13-2/5*5/13=5/13

3/4*7/9-3/4*)(7/9-2/3) =1/2

:^

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