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Ответ

Автор - jekadva

Ответ:

-2 1/12

Пошаговое объяснение:

1) 3 1/5 + 2 1/4 = 3 4/20 + 2 5/20 = 5 9/20

2) 5 9/20 * 5 = 109/20 * 5 = 109/4 = 27 1/4

3) 25 1/6 - 27 1/4 = 25 2/12 - 27 3/12 = -2 1/12

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