1) 2/5 : 1/3 = 6 : 5
2) 4/7 : 1/2 = 8 :7
3) 5/6 : 3/8 = 20 : 9
4) 3 1/9 : 2 1/6 = 28/9 * 6/13 = 56 : 39
5) 1 5/12 : 2/15 = 17/12 * 15/2 = 255/24 = 85 : 8
6) 1/8 : 1 7/12 = 1/8 * 12/19 = 3/38
1) 2/5 : 1/3 = 6 : 5
2) 4/7 : 1/2 = 8 :7
3) 5/6 : 3/8 = 20 : 9
4) 3 1/9 : 2 1/6 = 28/9 * 6/13 = 56 : 39
5) 1 5/12 : 2/15 = 17/12 * 15/2 = 255/24 = 85 : 8
6) 1/8 : 1 7/12 = 1/8 * 12/19 = 3/38