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Автор - cbelobokova

Вычислите наиболее простым способом 2 3/4-2 4/5+1/4+1 1/5

Ответ

Проверено экспертом

Автор - prettypushkova

Сгруппируем дроби с одинаковыми числителями:

= (2 3/4 + 1/4) - (2 4/5 - 1 1/5) = 2 4/4 - 1 3/5 = 3 - 1 3/5 = 1 2/5

Ответ: 1 целая 2/5.

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