How to Convert 1/5
1. Divide the numerator by the denominator
1 ÷ 5 = 0.2.
2. Multiply the decimal by 100
0.2 × 100 gives 20%.
3. Add the percent sign
The final percent form of 1/5 is 20%.
Direct answer
1/5 is 0.2 as a decimal and 20% as a percentage.
Enter whole-number numerator and denominator values. Results update instantly.
1/5
0.2
20%
2/10 · 3/15 · 4/20
1 ÷ 5 = 0.2.
0.2 × 100 gives 20%.
The final percent form of 1/5 is 20%.
Multiply the numerator and denominator by the same non-zero whole number. The written numbers change, but the ratio stays equal.
| Multiplier | Calculation | Equivalent fraction | Cross-product check |
|---|---|---|---|
| × 2 | (1 × 2) / (5 × 2) | 2/10 | 1 × 10 = 5 × 2 |
| × 3 | (1 × 3) / (5 × 3) | 3/15 | 1 × 15 = 5 × 3 |
| × 4 | (1 × 4) / (5 × 4) | 4/20 | 1 × 20 = 5 × 4 |
| × 5 | (1 × 5) / (5 × 5) | 5/25 | 1 × 25 = 5 × 5 |
| × 6 | (1 × 6) / (5 × 6) | 6/30 | 1 × 30 = 5 × 6 |
| × 7 | (1 × 7) / (5 × 7) | 7/35 | 1 × 35 = 5 × 7 |
This fraction converts to a familiar benchmark percentage, which helps with estimation, discounts, grades, and progress tracking.
Learning tip: Memorize common benchmark fractions so you can estimate an answer before calculating.
Divide 1 by 5. The decimal form is 0.2.
Multiply its decimal value by 100. The result is 20%.
Yes. Its simplified denominator has no prime factors other than 2 or 5.
1/5 simplifies to 1/5. This does not change its decimal or percentage value.