4/5 as a decimal and a percentage
4/5
= 0.8 = 80%
4/5 means 4 out of 5 equal parts. As a decimal it is 0.8, and as a percentage 80%.
Ways to write it
- Decimal
- 0.8
- Percentage
- 80%
- Simplest form
- Already in its simplest form
- As a division
- 4 ÷ 5
- Equivalent fractions
- 8/10 = 12/15 = 16/20 = 20/25
- Compared with one half
- More than 1/2
- Reciprocal
- 5/4
- 4/5 of 20
- 16
How to work it out
- Divide the top number by the bottom number: 4 ÷ 5 = 0.8.
- To make a percentage, multiply by 100: 0.8 × 100 = 80%.
- 4 and 5 have no common factor bigger than 1, so 4/5 cannot be simplified.
Quick check
Is 4/5 more or less than 1/2?
Show the answer
More than 1/2
What is 4/5 of 20?
Show the answer
16
4/5 = ?/10
Show the answer
8
Practise with a game
Frequently asked questions
What is 4/5 as a decimal?
4/5 as a decimal is 0.8.
What is 4/5 as a percentage?
4/5 as a percentage is 80%.
What is 4/5 in its simplest form?
4/5 is already in its simplest form.