1) 1) Найдите отношения.
3,8 : 0,2 =
4 м : 800 см =
2 кг : 500 г =
9 мин : 1,5 ч =
2) Решите уравнения:
3 : x = 15 : 25
6 : 23 = x : 46
0,5 : 4,5 = 0,2 : x
x : 2,1 = 2,8 : 3

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