Сократить дроби 8/12 15/30 14/21 30/35
8/12 = 8:4/12:4 = 2/3 15/30 = 15:15/30:15 = 1/2 14/21 = 14:7/21:7 = 2/3 30/35 = 30:5/35:5 = 6/7