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Автор - Картель101

2 примера)
(4/15 + 19/25) * 6/7
(5/22 - 8/11) * 11/5

Ответ

Автор - 9Lucky
 (frac{(5*4)+(3*19)}{75} } )*6/7= frac{77}{75} * frac{6}{7} = frac{66}{75}
 (frac{5-(2*8)}{22} )*11/5=- frac{11}{22} * frac{11}{5} =- frac{22}{5}

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