4/21 и 5/28 общий знаменатель 84
16/84 и 15/84
4/21=4×4=16 21×4=84
5/28=5×3=1528×3=84
Ответ:16/84 и 15/84
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Verified answer
4/21 и 5/28 общий знаменатель 84
16/84 и 15/84
Verified answer
4/21=4×4=16 21×4=84
5/28=5×3=1528×3=84
Ответ:16/84 и 15/84