Приведите дроби 2/3 1/2 31/6 4/15 7/20 11/30 знаменателю 60

2/3 =40/60

1/2 =30/60

31/6=310/60

4/15=16/60

7/20 =21/60

11/30 =22/60

Решение: 1) 2/3 = 40 / 60.2) 1/2 = 30 / 60.3) 31/6 = 310/ 60.4)4 / 15 = 16 / 60.5) 7 / 20 = 21 / 60.6) 11 / 30 = 22/ 60☆