Math Resources

LCD Calculator (Least Common Denominator)

Least Common Denominator (LCD) Calculator

Fraction 1:
Fraction 2:
Calculation Options:
Display Options:
LCD = 0
Equivalent Fractions with Common Denominator:
Visual Representation:
Calculation Steps:
What is the Least Common Denominator (LCD)?

The Least Common Denominator (LCD) is the smallest positive number that is divisible by all denominators of a set of fractions. It's the same as the Least Common Multiple (LCM) of the denominators.

The LCD allows you to rewrite fractions with a common denominator, making it easier to add, subtract, or compare fractions.

LCD = LCM(denominator₁, denominator₂, ...)
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