What is 42 Percent of 15?
42% of 15 = 6.3
- Result
- 6.3
- Remaining
- 8.7
- 42% as decimal
- 0.42
- 15 + 42%
- 21.3
Sumwise · Checked by Theo Abbott · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How we check it
How to work it out
- Turn the percentage into a decimal: 42 ÷ 100 = 0.42
- Multiply: 0.42 × 15 = 6.3
- Check: Work backwards: 6.3 ÷ 15 × 100 = 42%.
Another method. As a proportion of part to whole: 42/100 = part/15, so part = 42 × 15 ÷ 100 = 6.3. Both methods always give the same answer.
In a spreadsheet: =42%*15. Forgetting to divide the percentage by 100 makes the answer 100 times too big. Note that x% of y always equals y% of x.
What the result means
6.3 is the 42% share of 15. The remaining 58% is 8.7, and the two parts add back up to 15.
Discounts: 42% off an item priced $15 saves $6.3, so you pay $8.7.
Adding and taking away 42%
Increasing 15 by 42% gives 21.3 and decreasing it by 42% gives 8.7. These do not cancel out: raising 15 by 42% and then lowering the result by 42% ends at 12.354, because the second 42% is taken of a bigger number.
Related results
| 5% of 15 | 5% of 15 = 0.75 |
| 10% of 15 | 10% of 15 = 1.5 |
| 15% of 15 | 15% of 15 = 2.25 |
| 20% of 15 | 20% of 15 = 3 |
| 25% of 15 | 25% of 15 = 3.75 |
| 50% of 15 | 50% of 15 = 7.5 |
| 75% of 15 | 75% of 15 = 11.25 |
The other way round: 15% of 42
Practice
| 8% of 74 | Show answer8% of 74 = 5.92 |
| 85% of 38 | Show answer85% of 38 = 32.3 |
| 55% of 83 | Show answer55% of 83 = 45.65 |
| 59% of 23 | Show answer59% of 23 = 13.57 |
| 39% of 42 | Show answer39% of 42 = 16.38 |
| 84% of 28 | Show answer84% of 28 = 23.52 |
How answers are calculated and checked: methodology.
Questions
What is 42 Percent of 15?
42% of 15 is 6.3. Formula, steps and practice examples.
What is 42% off 15?
8.7. Taking 42% off leaves 58% of 15.
What is 15 plus 42%?
21.3. Adding 42% is the same as multiplying by 1.42.