Решение:
а) 3 : 5 = 3/5;
или
3 : 5 = 0,6.
6) 20 : 25 = 20/25 = 4/5;
20 : 25 = 20/25 = (20:5)/(25:5) = 4/5 = 8/10 = 0,8.
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Решение:
а) 3 : 5 = 3/5;
или
3 : 5 = 0,6.
6) 20 : 25 = 20/25 = 4/5;
или
20 : 25 = 20/25 = (20:5)/(25:5) = 4/5 = 8/10 = 0,8.