3/21 as a Decimal and Percent
3/21 = 0.142857 = 14.285714%
3/21 as a decimal is 0.142857 (the digits under the bar repeat forever, so rounded it is 0.1428571429). In simplest form it is 1/7.
How to convert 3/21 to a decimal
Divide the numerator by the denominator: 3 ÷ 21 = 0.142857. With long division:
| Divide | Result digit | Remainder |
|---|---|---|
| 3 ÷ 21 | 0 | 3 |
| 30 ÷ 21 | 1 | 9 |
| 90 ÷ 21 | 4 | 6 |
| 60 ÷ 21 | 2 | 18 |
| 180 ÷ 21 | 8 | 12 |
| 120 ÷ 21 | 5 | 15 |
| 150 ÷ 21 | 7 | 3 |
A remainder comes back that we have seen before, so the digits 142857 repeat forever.
As a percentage
Multiply the decimal by 100: 0.1428571429 × 100 = 14.285714%.
3/21 in other forms
- Decimal
- 0.142857
- Percent
- 14.285714%
- Simplest form
- 1/7 (divide both by 3)
- Reciprocal
- 21/3 = 7
- Ratio
- 1:7
Equivalent fractions
Nearby fractions
| 1/21 | 0.0476190476 |
| 2/21 | 0.0952380952 |
| 4/21 | 0.1904761905 |
| 5/21 | 0.2380952381 |
| 6/21 | 0.2857142857 |
Frequently asked questions
What is 3/21 as a decimal?
3/21 = 0.1428571429 (repeating).
What is 3/21 as a percent?
3/21 = 14.285714%.
What is 3/21 in simplest form?
3/21 simplifies to 1/7.