Предмет: Математика, автор: pavelbalbabyan

7/7-8/8=-1/1 +7/7+9/8=

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Автор ответа: Rihana1

0

7/7-8/8=1-1=0
-1/1+7/7+9/8=-1+1+1+1/8=1+1/8=9/8

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