Turn any decimal into a fraction in its simplest form, or a fraction into a decimal, with the steps shown.
Recipes, measurements, shares and math homework all switch between decimals and fractions. A calculator shows 0.375 while a ruler shows 3/8, and it’s not always obvious they’re the same. This converter turns any decimal into a fraction in its simplest form, handles repeating decimals such as 0.333…, and converts fractions back to decimals and percentages.
How do I convert a decimal to a fraction?
Write the decimal over 1 followed by as many zeros as there are digits after the point, then simplify. For 0.375, that’s 375/1000. Both numbers divide by 125, giving 3/8. For a repeating decimal like 0.333…, enter 3 as the repeating digit and you get 1/3.
Step-by-step method
2. Greatest common divisor of 375 and 1000 = 125
3. 375 ÷ 125 = 3, 1000 ÷ 125 = 8
4. Answer: 3/8
Common decimals as fractions
| Decimal | Fraction | Decimal | Fraction |
|---|---|---|---|
| 0.125 | 1/8 | 0.6 | 3/5 |
| 0.2 | 1/5 | 0.625 | 5/8 |
| 0.25 | 1/4 | 0.666… | 2/3 |
| 0.333… | 1/3 | 0.75 | 3/4 |
| 0.375 | 3/8 | 0.8 | 4/5 |
| 0.5 | 1/2 | 0.875 | 7/8 |
Repeating decimals
A repeating decimal such as 0.1666… (where 6 repeats) is converted with a little algebra. The tool does it for you: type 0.1 as the decimal and 6 as the repeating part, and it returns 1/6.
How to use the Decimal to Fraction Calculator
Type the decimal
Enter any decimal, such as 0.375 or 2.125. Negative numbers work too.
Add repeating digits if needed
For a decimal like 0.333…, put the part that repeats here, such as 3.
Or enter a fraction
Type a fraction such as 7/8 or a mixed number such as 1 3/4 to convert it to a decimal.
Read the answer
The simplest fraction, or the decimal, appears in large text with the working underneath.
Frequently asked questions
What is 0.75 as a fraction?
0.75 is 3/4.
What is 0.2 as a fraction?
0.2 is 1/5.
How do I convert a repeating decimal to a fraction?
Enter the non-repeating part as the decimal and the repeating digits in the second box. 0.333… becomes 1/3.
What is 1.5 as a fraction?
1.5 is 3/2, or 1 1/2 as a mixed number.
How do I turn a fraction into a percentage?
Divide the top number by the bottom number and multiply by 100. The tool shows the percentage when you enter a fraction.
Sources and further reading
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Last reviewed: October 2026