Fractions, percentages, decimals
You learn to write a ratio as a fraction, as a decimal and as a percentage.
How to work it out
- 1 in 4 is the fraction 14.
- Divide 1 ÷ 4 = 0.25 for decimal.
- Multiply by 100 for percentage: 25%.
14
1 out of 2, as a fraction
- Of every 2 there is 1.
- Put 1 above the line and 2 below.
- It is 12.
12
More examples
3 out of 4, as a decimal
- Write it as a fraction: 34.
- Divide the top by the bottom: 3 ÷ 4 = 0.75.
- It is 0.75.
34
1 out of 5, as a percentage
- Write it as a fraction: 15.
- Divide the top by the bottom: 1 ÷ 5 = 0.2.
- Multiply by 100: 0.2 × 100 = 20.
- It is 20%.
15