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Glossary Math & Statistics

Fraction

A fraction represents a part of a whole as a numerator over a denominator, such as 3/8.

Last reviewed: 2026-10-03

In more detail

3/8 = 0.375. To add fractions, find a common denominator with the Least common multiple (LCM); to simplify, divide top and bottom by their Greatest common factor (GCF).

Try these tools

Fraction Calculator

A comprehensive fraction calculator for addition, subtraction, multiplication, division, simplification, and conversions.

Decimal to Fraction Calculator

Convert decimals to fractions and fractions to decimals exactly, including repeating decimals like 0.(3) = 1/3.

See also

Glossary Ratio
A ratio compares two quantities by division, written a:b, and is usually simplified by their greatest common factor.
Glossary Percentage
A percentage expresses a number as a part of 100, so 25% means 25 out of every 100, or one quarter.

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