31 divided by 2 is 15 with a remainder of 1, or 15.5 as a decimal. In symbols: 31 ÷ 2 = 15.5.
| Form | Answer |
|---|---|
| Quotient and remainder | 15 remainder 1 |
| Decimal | 15.5 |
| Fraction | 31/2 |
| Mixed number | 15 1/2 |
| Percent | 1550% |
Ask how many times 2 fits into 31. 2 × 15 = 30, and 2 × 16 = 32 is too big, so 2 goes into 31 exactly 15 times with 31 − 30 = 1 left over.
The remainder 1 is 1/2 of another 2, and 1 ÷ 2 = 0.5. So 31 ÷ 2 = 15 + 0.5 = 15.5.
Multiply back: 15 × 2 + 1 = 30 + 1 = 31. ✓
| Division | Answer |
|---|---|
| 30 ÷ 2 | 15 |
| 32 ÷ 2 | 16 |
| 31 ÷ 3 | 10 R 1 |
| 29 ÷ 2 | 14 R 1 |
| 33 ÷ 2 | 16 R 1 |
| 62 ÷ 2 | 31 |
| 31 ÷ 4 | 7 R 3 |
See also: factors of 31.
Other numbers? Browse all division answers, the multiplication table or the fraction calculator.