# Least Common Denominator

Use this calculator to find the least common denominator of a list of fractions. Use spaces to separate the fractions.

## How to rewrite multiple fractions with the same denominator

- If necessary, simplify the fractions (more details on Simplify a fraction.)
- Calculate the LCM (Least Common Multiple) of the denominators (more details on the LCM)

Example: Find common denominators of fractions 3/5, 3/10, and 1/2

Fractions are irreducible, we proceed as follows,

LCM (5,10,2) = 10

Fractions are equal to,

(3*2)/(5*2), (3*1)/(10*1) and (1*5)/(2*5)

Therefore,

6/10, 3/10 and 5/10