4/10 as a decimal and a percentage
4/10
= 0.4 = 40%
4/10 means 4 out of 10 equal parts. As a decimal it is 0.4, and as a percentage 40%.
Ways to write it
- Decimal
- 0.4
- Percentage
- 40%
- Simplest form
- 2/5
- As a division
- 4 ÷ 10
- Equivalent fractions
- 6/15 = 8/20 = 10/25 = 2/5
- Compared with one half
- Less than 1/2
- Reciprocal
- 10/4
- 4/10 of 40
- 16
How to work it out
- Divide the top number by the bottom number: 4 ÷ 10 = 0.4.
- To make a percentage, multiply by 100: 0.4 × 100 = 40%.
- To simplify, divide the top and bottom by 2, their highest common factor: 4 ÷ 2 = 2 and 10 ÷ 2 = 5, so 4/10 = 2/5.
Quick check
Is 4/10 more or less than 1/2?
Show the answer
Less than 1/2
What is 4/10 of 40?
Show the answer
16
4/10 = ?/20
Show the answer
8
Practise with a game
Frequently asked questions
What is 4/10 as a decimal?
4/10 as a decimal is 0.4.
What is 4/10 as a percentage?
4/10 as a percentage is 40%.
What is 4/10 in its simplest form?
4/10 in its simplest form is 2/5.