Use the following table as a handy guide when you need to make basic conversions among the three.
| Fraction | Decimal | Percent |
|---|---|---|
| 1/100 | 0.01 | 1% |
| 1/20 | 0.05 | 5% |
| 1/10 | 0.1 | 10% |
| 1/5 | 0.2 | 20% |
| 1/4 | 0.25 | 25% |
| 3/10 | 0.3 | 30% |
| 2/5 | 0.4 | 40% |
| 1/2 | 0.5 | 50% |
| 3/5 | 0.6 | 60% |
| 7/10 | 0.7 | 70% |
| 3/4 | 0.75 | 75% |
| 4/5 | 0.8 | 80% |
| 9/10 | 0.9 | 90% |
| 1 | 1.0 | 100% |
| 2 | 2.0 | 200% |
| 10 | 10.0 | 1,000% |
Mark Zegarelli is a math teacher and tutor with degrees in math and English from Rutgers University. He is the author of a dozen books, including Basic Math & Pre-Algebra For Dummies, SAT Math For Dummies, and Calculus II For Dummies. Through online tutoring, he teaches multiplication and beyond to preschoolers in a way that sets them up for school success while keeping the natural magic of math alive. Contact Mark at markzegarelli.com.
