Сакратите дробь 8/10 4/6 6/9 10/25 14/49 9/15 12/15 14/18 решите с обеснением

8/10 = 8:2 / 10:2 = 4/5
4/6 = 4:2 / 6:2 = 2/3
6/9 = 6:3 / 9:3 = 2/3
10/25 = 10:5 / 25:5 = 2/5
14/49 = 14:2 / 49:2 = 2/7
9/15 = 9:3 / 15:3 = 3/5
12/15 = 12:3 / 15:3 = 4/5
14/18 = 14:2 / 18:2 = 7/9