21 divided by 11 is 1 with a remainder of 10, or about 1.9091 as a decimal. In symbols: 21 ÷ 11 = 1.9090... (90 repeats).
| Form | Answer |
|---|---|
| Quotient and remainder | 1 remainder 10 |
| Decimal | 1.9090... (90 repeats) |
| Fraction | 21/11 |
| Mixed number | 1 10/11 |
| Percent | 190.91% |
Ask how many times 11 fits into 21. 11 × 1 = 11, and 11 × 2 = 22 is too big, so 11 goes into 21 exactly 1 times with 21 − 11 = 10 left over.
The remainder 10 is 10/11 of another 11, and 10 ÷ 11 = about 0.9091. So 21 ÷ 11 = 1 + 0.9091 = about 1.9091.
Multiply back: 1 × 11 + 10 = 11 + 10 = 21. ✓
| Division | Answer |
|---|---|
| 20 ÷ 11 | 1 R 9 |
| 22 ÷ 11 | 2 |
| 21 ÷ 10 | 2 R 1 |
| 21 ÷ 12 | 1 R 9 |
| 19 ÷ 11 | 1 R 8 |
| 23 ÷ 11 | 2 R 1 |
| 42 ÷ 11 | 3 R 9 |
See also: factors of 21.
Other numbers? Browse all division answers, the multiplication table or the fraction calculator.