4/5 as a percentage
Make the bottom 100: 4/5 = 80/100, and per cent means out of 100, so 4/5 is 80%.
The answer
4/5 = 80%
How to turn 4/5 into a percentage
Per cent means out of 100, so a percentage is a fraction with a bottom of 100.
- Make the bottom 100: 5 × 20 = 100.
- Do the same to the top: 4 × 20 = 80.
- So 4/5 = 80/100, which is 80%.
4/5 as a fraction, decimal and percentage
| Fraction | Decimal | Percentage |
|---|---|---|
| 4/5 | 0.8 | 80% |
Multiply the top and bottom by the same number and the fraction keeps its value: 4/5, 8/10, 12/15, 16/20 and 20/25 are all equal.
Looking for 8/10? It is the same as 4/5, so it gives the same decimal and percentage.
All the fifths
Shade 4/5 on a fraction wall
This wall shows selected denominators: halves, thirds, quarters, fifths, sixths, eighths and tenths. Other fractions on this site may not have a row here. The wall opens with 4/5 shaded in the fifths row. Look straight down: the shading ends in exactly the same place in 8/10, so it is equal to 4/5. Tap other pieces to try more fractions.
A fraction wall from halves to tenths, opening on 4/5.
Keep going
Questions parents ask
What is 4/5 as a percentage?
4/5 = 80%.
What percentage is 4 out of 5?
4 out of 5 is 80%, because 4 out of 5 is the fraction 4/5.
How do you turn 4/5 into a percentage?
Make the bottom 100. 5 × 20 = 100, so multiply the top by 20 too: 4/5 = 80/100. Per cent means out of 100, so 4/5 = 80%.
What is 4/5 as a decimal?
4/5 = 0.8.
Is 4/5 more or less than 50%?
4/5 is more than 50%: 0.8 is more than 0.5. Half of 5 is 2.5, and 4 is more than 2.5.
Continue your maths practice
Explore the diagnostic for another way to practise.