**Finding Lowest or Least Common Denominator (LCD) **

of Fractions

of Fractions

**Finding Lowest Common Denominator (LCD)**

The lowest common denominator or least common denominator (abbreviated LCD) is the least common multiple of a set of fractions. It is the smallest number that both denominators can divide by evenly.

**Example: The LCD of the fraction below is 36**

**36** least common multiples of 12 and 18 because 36 is the smallest number that both 12 and 18 can divide by evenly (with no remainder.

**These two fractions can know be added or subtracted**