1. 72% = 18/25, 0.72
2. 25% = 1/4, 0.25
3. 500% = 5 or 5/1
4. 5% = 1/20, 0.05
5. 37% 37/100, 0.37
6. 165% = 1 13/20, 1.65
7. 5/8 = 0.625, 62.5
8. 258/300 = 0.86, 86%
9. 350/100 = 3.5, 350%
10. 12 ÷ 15 = 0.8 = 80%= 8/10
11 68 ÷ 80 = 0.85 = 85% = 17/20
