Ответ:
1) 5а/30а=1/6
2)48с/81=16с/27
3)18d/2da=9/d
4)28nm/42mn=14/21
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Ответ:
1) 5а/30а=1/6
2)48с/81=16с/27
3)18d/2da=9/d
4)28nm/42mn=14/21