Предмет: Алгебра, автор: Koko1n

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Автор ответа: Alex308604

Ответ:

Путем сокращения m и n в знаменателе и числителе дроби, получается 9/8

Автор ответа: bisembaevad

9(m-1)/8(m-1)
Сокращаешь m-1 и остаётся 9/8

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