Decimal to Fraction Calculator

What This Decimal to Fraction Calculator Does

A decimal is already a fraction in disguise - you just read the place value. 0.75 is “75 hundredths,” which is 75/100, and that simplifies to 3/4. The number of decimal places tells you the denominator: tenths, then hundredths, then thousandths, and so on.

So the recipe is: put the digits over the right power of 10, then simplify. Type a decimal and the tool does both, and shows a mixed number when the decimal is bigger than 1.

How to Convert a Decimal to a Fraction

1. Write the decimal over a power of 10 (one zero per decimal place).
2. Simplify by dividing the top and bottom by their greatest common divisor.

For example, $0.75 = \frac{75}{100}$, and dividing both by 25 gives $\frac{3}{4}$.

How to Use It

1. Enter a decimal (for example, 0.75 or 1.25).
2. Read the simplified fraction, plus the mixed number when the value is above 1.

Worked Examples

Decimal	Over a power of 10	Simplest form
0.5	5/10	1/2
0.75	75/100	3/4
0.2	2/10	1/5
0.125	125/1000	1/8
1.25	125/100	5/4 = 1 1/4

FAQ

How do you convert a decimal to a fraction?

Write the decimal over a power of 10 (one zero per decimal place), then simplify. For 0.75: $\frac{75}{100}$, which reduces to $\frac{3}{4}$.

How are repeating decimals handled?

This tool converts the exact digits you type, so a typed $0.333$ becomes $\frac{333}{1000}$, not $\frac{1}{3}$. For a true repeating decimal, round to the fraction you intend.

What is 0.5 as a fraction?

$0.5 = \frac{1}{2}$.

Can it give a mixed number?

Yes. Decimals above 1, like 1.25, are shown both as an improper fraction ($\frac{5}{4}$) and a mixed number ($1\tfrac{1}{4}$).