Convert 0.5 to a Fraction

Quickly express 0.5 as a fraction and see detailed conversion steps and simplification rules.

Result

0.5 =
1
2
0.5
=
5
10
(1 decimal place → denominator 10)
5/10
→ simplify ÷5
1
2
(divide numerator and denominator by 5)

Step 1: 0.5 has 1 decimal place, so write it as 5/10.

Step 2: Divide numerator and denominator by 5: 5/10 → 1/2.

Property: In simplest terms, denominators with prime factors only 2 and/or 5 produce terminating decimals.

FAQ

Why can 0.5 be converted to a fraction?
Decimals can be expressed as fractions by using place value and simplifying.
0.5 terminating or repeating?
It is terminating.
Can it be simplified further?
1/2 is simplest.

Related Conversions

Extended Reading: What 0.5 Means in Real Life

Percentage & Ratio: 0.5 can be interpreted as 1/2 in practical scenarios like discounts and rates.

Statistics: A proportion of 0.5 often represents a 50% probability — for example, a 50% significance level (p-value) in experiments or surveys.

Finance: Rates expressed with 0.5 (e.g., 50%) appear in returns and fees.

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