21/55 as a decimal
21/55 as a decimal is 0.381818… (the digits 81 repeat forever), which is 0.38 rounded to 2 decimal places.
Change either number to try your own. The digits 81 repeat. Rounded to 2 places: 0.38. In lowest terms: 21/55.
See the full steps for these numbersHow to work it out
- 1
A fraction is a division. Divide the top number 21 by the bottom number 55.
- 2
55 does not go into 21 even once, so the whole part is 0 and we carry on after the decimal point.
- 3
Long division: bring down a zero each time (multiply the remainder by 10), divide by 55, and write the digit. A remainder comes back after 3 steps, so the digits 81 repeat forever.
- 4
The result is
LaTeX source of the formulas on this page
\[ \frac{21}{55} = 0.3\overline{81} \]
\[ \frac{21}{55} = 21 \div 55 \]Long division of 21 by 55
| Step | Remainder × 10 | Divide by 55 | Remainder left |
|---|---|---|---|
| 1 | 210 | 210 ÷ 55 = 3 | 45 |
| 2 | 450 | 450 ÷ 55 = 8 | 10 |
| 3 | 100 | 100 ÷ 55 = 1 | 45 |
Questions
What is 21/55 as a decimal?
21/55 as a decimal is 0.381818… (the digits 81 repeat forever), which is 0.38 rounded to 2 decimal places.
Is 21/55 a terminating or a repeating decimal?
It repeats. The bottom number 55 = 5 × 11 has a prime factor other than 2 and 5, so the division never ends and the block 81 (2 digits) repeats.
What is 21/55 as a percent?
21/55 is 38.181818…% as a percent.
How do I round 21/55 to 2 decimal places?
21/55 rounded to 2 decimal places is 0.38.