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Ответ

Ответ дан
alex080297

Ответ:


Пошаговое объяснение:

a) 2/7=18/63

б) 8/9=56/63

в)4/21=12/63

Ответ

Ответ дан
magic8848
2/7×9=18/63
8/9×7=56/63
4/21×3=12/63

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