0.04 as a fraction
0.04 is 4 hundredths, so write it as 4/100 and simplify to 1/25.
The answer
0.04 = 1/25
How to write 0.04 as a fraction
Put the digits in a place value chart. The place of the last digit tells you the bottom of the fraction.
| Ones | Tenths | Hundredths |
|---|---|---|
| 0 | 0 | 4 |
The last digit is in the hundredths column, so 0.04 is 4 hundredths: 4/100.
Simplify by dividing the top and bottom by the same number. In one go, divide by the highest common factor (the biggest whole number that divides both exactly), 4: 4/100 = 1/25.
If you cannot spot 4, smaller steps get there too:
- Divide by 2: 2/50
- Divide by 2: 1/25
1 and 25 share no factor except 1, so 1/25 is the simplest form.
As a percentage, 0.04 = 4%: multiply by 100, which moves each digit two places to the left.
To check, divide back: see 1/25 as a decimal and 1/25 as a percentage.
See 1/25
More decimals as fractions
Questions parents ask
What is 0.04 as a fraction in its simplest form?
0.04 = 4/100 = 1/25. Divide the top and bottom of 4/100 by 4 to get 1/25.
How do you write 0.04 as a fraction?
The last digit of 0.04 is in the hundredths column, so write the digits over 100: 4/100. Then simplify if you can.
What is 0.04 as a percentage?
0.04 = 4%. Multiply by 100: the digits move two places to the left.
Continue your maths practice
Explore the diagnostic for another way to practise.