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Автор - bvythbvythbvyth09

1 1/4×1 1/5×1 1/6×1 1/7×1 1/8-1/4
помогите пож.как подро

Ответ

Автор - Aisu4567
=4/5*5/6*6/7*7/8=4/8-1/4=1/4
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