Simplify ratios

Divide both numbers by the same number until the ratio is in simplest form.

1. Write 28 : 24 in simplest form.
2. Write 21 : 6 in simplest form.
3. Write 12 : 16 in simplest form.
4. Write 25 : 20 in simplest form.
5. Write 8 : 18 in simplest form.
6. Write 4 : 10 in simplest form.
7. Write 24 : 30 in simplest form.
8. Write 18 : 12 in simplest form.
9. Write 63 : 81 in simplest form.
10. Write 56 : 77 in simplest form.
11. Write 56 : 24 in simplest form.
12. Write 64 : 24 in simplest form.
13. Write 60 : 44 in simplest form.
14. Write 20 : 35 in simplest form.
15. Write 30 : 25 in simplest form.
16. Write 60 : 16 in simplest form.
17. Write 104 : 56 in simplest form.
18. Write 96 : 88 in simplest form.
19. Write 190 : 150 in simplest form.
20. Write 42 : 108 in simplest form.