1. 5/6 = 10/12
3/4 = 6/8
2. 2/9 = 4/18
4/12 = 1/3
3. 6/7 = 12/14
1/2 = 2/4
4. 5/9 = 10/18
3/18 = 1/6
5. 1/6 = 2/12
1/9 = 2/18
6. 3/8 = 6/12
5/6 = 10/12
