Adding and Subtracting Fractions with Unlike Denominators

Unlike fractions have different denominators. To add or subtract
unlike fractions, first rewrite them as equivalent fractions with a
common denominator. You can use any common denominator or
the least common denominator to add and subtract unlike
fractions. The least common denominator (LCD) is the least
common multiple of the denominators.

Here is an example:

To get more practice with Adding and Subtracting Fractions with Unlike Denominators Click the Links Below:

Page 1: Word Problems
Page 2: Practice Page 1
Page 3: Practice Page 2