What is 45% of 20? = 9
45 percent of 20 is 9. See the step-by-step solution, formula and worked example for how to calculate 45% of 20.
45% of 20 = 9
What is % of
Solution: What is 45 percent of 20?
45% × 20 =
(45 ÷ 100) × 20 =
(45 × 20) ÷ 100 =
900 ÷ 100 = 9
(45 ÷ 100) × 20 =
(45 × 20) ÷ 100 =
900 ÷ 100 = 9
Step-by-step explanation
- "Percent" means "per hundred", so 45% = 45 ÷ 100 = 0.45.
- "Of" means multiply, so we calculate 0.45 × 20.
- 0.45 × 20 = 9.
- So 45 percent of 20 is 9.
Good to know
Another way to check this: 1% of 20 is 0.2, and 45% is just 45 of those, so 45 × 0.2 = 9. Percentages like this come up everywhere — working out a 45% deposit, tip, tax or commission on 20, for example.
Quick reference: percentages of 20
| 1% of 20 | 0.2 |
| 5% of 20 | 1 |
| 10% of 20 | 2 |
| 15% of 20 | 3 |
| 20% of 20 | 4 |
| 25% of 20 | 5 |
| 50% of 20 | 10 |
| 75% of 20 | 15 |
| 100% of 20 | 20 |
Frequently asked questions
What is 45 percent of 20?
45% of 20 is 9.
How do you calculate 45% of 20?
Divide 45 by 100 to get 0.45, then multiply by 20 to get 9.
What is 20 minus 45%?
20 − 9 = 11 (see 45% off 20).
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