Предмет: Математика, автор: Ленок8433

Найдите значение выражения:
а)1/5+1/7-1/9
б)21/22-3/66+4/11
в)13/18-1/6+7/9
Помогите решить пожалуйста!!!

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Автор ответа: Аноним

0

решение есть на фото.

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