1) 1/3 : 1/9= 1/3 * 9/1= 9/3 = 3
2) 3/8 : 1/2 = 3/8 * 2/1 = 3/4 = 0,75
3) 4/9 : 8/9 = 1/2 = 0,5
4) 1/12 : 1/6 = 1/2 = 0,5
5) 3/5 : 1/25 = 3/5 * 25/1 = 15
6) 2/7 : 3/7 = 2/7 * 7/3 = 2/3
7) 1/10 : 1/10 = 1/10 * 10/1 = 1
8) 3/4 : 8/5 = 3/4 * 5/8 = 15/32