What is 40 Percent of 20?
40% of 20 = 8
- Result
- 8
- Remaining
- 12
- 40% as decimal
- 0.4
- 20 + 40%
- 28
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: 40 ÷ 100 = 0.4
- Multiply: 0.4 × 20 = 8
- Check: Work backwards: 8 ÷ 20 × 100 = 40%.
Another method. As a proportion of part to whole: 40/100 = part/20, so part = 40 × 20 ÷ 100 = 8. Both methods always give the same answer.
In a spreadsheet: =40%*20. 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
8 is the 40% share of 20. The remaining 60% is 12, and the two parts add back up to 20.
Discounts: 40% off an item priced $20 saves $8, so you pay $12.
Adding and taking away 40%
Increasing 20 by 40% gives 28 and decreasing it by 40% gives 12. These do not cancel out: raising 20 by 40% and then lowering the result by 40% ends at 16.8, because the second 40% is taken of a bigger number.
Related results
| 5% of 20 | 5% of 20 = 1 |
| 10% of 20 | 10% of 20 = 2 |
| 15% of 20 | 15% of 20 = 3 |
| 20% of 20 | 20% of 20 = 4 |
| 25% of 20 | 25% of 20 = 5 |
| 50% of 20 | 50% of 20 = 10 |
| 75% of 20 | 75% of 20 = 15 |
The other way round: 20% of 40
Practice
| 8% of 59 | Show answer8% of 59 = 4.72 |
| 41% of 79 | Show answer41% of 79 = 32.39 |
| 37% of 87 | Show answer37% of 87 = 32.19 |
| 86% of 62 | Show answer86% of 62 = 53.32 |
| 27% of 60 | Show answer27% of 60 = 16.2 |
| 85% of 8 | Show answer85% of 8 = 6.8 |
How answers are calculated and checked: methodology.
Questions
What is 40 Percent of 20?
40% of 20 is 8. Formula, steps and practice examples.
What is 40% off 20?
12. Taking 40% off leaves 60% of 20.
What is 20 plus 40%?
28. Adding 40% is the same as multiplying by 1.4.