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Ответ:


Пошаговое объяснение:

г) 6/7 * 3/3 u 1/3 * 7/7

18/21 u 7/21


д) 2/15*2/2 u 3/10*3/3

4/30 u 9/30


е) 3/4*25/25 u 9/25*4/4

75/100 u 36/100

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