45 divided by 2 is 22 with a remainder of 1, or 22.5 as a decimal. In symbols: 45 ÷ 2 = 22.5.
| Form | Answer |
|---|---|
| Quotient and remainder | 22 remainder 1 |
| Decimal | 22.5 |
| Fraction | 45/2 |
| Mixed number | 22 1/2 |
| Percent | 2250% |
Ask how many times 2 fits into 45. 2 × 22 = 44, and 2 × 23 = 46 is too big, so 2 goes into 45 exactly 22 times with 45 − 44 = 1 left over.
The remainder 1 is 1/2 of another 2, and 1 ÷ 2 = 0.5. So 45 ÷ 2 = 22 + 0.5 = 22.5.
Multiply back: 22 × 2 + 1 = 44 + 1 = 45. ✓
| Division | Answer |
|---|---|
| 44 ÷ 2 | 22 |
| 46 ÷ 2 | 23 |
| 45 ÷ 3 | 15 |
| 43 ÷ 2 | 21 R 1 |
| 47 ÷ 2 | 23 R 1 |
| 90 ÷ 2 | 45 |
| 45 ÷ 4 | 11 R 1 |
See also: factors of 45.
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