Ответ:
2 4/7 : 3/35 = 18/7 : 3/35 = 18х35/7х3= 630/21 = 30 целых
4/25 : 8 = 4/200 = 1/50
12 : 4/25 = 12/1 х 25/4 = 3/1 х 25/3 = 75
25/51 х 17/45 = 25х17/51х45 = 25х1/3х45= 25/135 = 5/27
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Ответ:
2 4/7 : 3/35 = 18/7 : 3/35 = 18х35/7х3= 630/21 = 30 целых
4/25 : 8 = 4/200 = 1/50
12 : 4/25 = 12/1 х 25/4 = 3/1 х 25/3 = 75
25/51 х 17/45 = 25х17/51х45 = 25х1/3х45= 25/135 = 5/27