Ответ:
232:
4/6=2/3 ; 15/12=5/4=1 1/4 ; 70а/140а= 1а/70а ; 85n/21n=21n
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Ответ:
232:
4/6=2/3 ; 15/12=5/4=1 1/4 ; 70а/140а= 1а/70а ; 85n/21n=21n