Автор - mississashs

3/5+=3/19+двецелых 2/5

Ответ

Автор - vpvrest
3/5+х=3/19+2 2/5
х=3/19+12/5-3/5
х=3/19+9/5
х=(3*5+9*19)/5*19
х=(15+152)/95
х=186/95= 1 целая 91/95

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