10.4 Addition and Subtraction: Like Denominators

Addding Fractions REVIEW:

To add rational expressions with like denominators… Keep the denominator and add or subtract the numerators (just like adding like terms) Remember to simplify your final answer

Example 1 3x 2 +4x-15

Example 2

Example 3 x + 4

Subtracting Rational Expressions (RE) When you subtract a RE remember to distribute the minus sign to the numerator of the 2 nd RE

REVIEW:

Example 4 ( ) 2

Example 5

Example 6

You try example 7:

Assignment Page even Answer must be factored