Convert 1.5 to a Fraction

Quickly express 1.5 as a fraction and see detailed conversion steps and simplification rules.

Result

1.5 =
3
2
1.5
=
15
10
(1 decimal place → denominator 10)
15/10
→ simplify ÷5
3
2
(divide numerator and denominator by 5)

Step 1: 1.5 has 1 decimal place, so write it as 15/10.

Step 2: Divide numerator and denominator by 5: 15/10 → 3/2.

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

FAQ

Why can 1.5 be converted to a fraction?
Decimals can be expressed as fractions by using place value and simplifying.
1.5 terminating or repeating?
It is terminating.
Can it be simplified further?
3/2 is simplest.

Related Conversions

Extended Reading: What 1.5 Means in Real Life

Percentage & Ratio: 1.5 can be interpreted as 3/2 in practical scenarios like discounts and rates.

Statistics: A proportion of 1.5 often represents a 150% probability — for example, a 150% significance level (p-value) in experiments or surveys.

Finance: Rates expressed with 1.5 (e.g., 150%) appear in returns and fees.

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