1. 8/16= 2/4 = 1/2
2. 12/24=1/2
3. 9/27=1/3
4. 8/32=1/4
5. 3/18=1/6
6. 7/63=1/9
7. 10/5= 2/1
8. 4/ 12= 1/3
9. 3/9=1/3
10. 15/35= 3/7
11. 25/75= 5/15 = 1/3
12. 16/36= 4/9
13. 18/45= 2/5
14. 3/18=1/6
15. 45/90=1/2
16. 21/49= 3/7
17. 28/63=4/9
18. 10/60= 1/6
19. 12/54= 2/9
20. 3/72= 1/24