1. 10.4 Addition and Subtraction: Like Denominators

2. Addding Fractions REVIEW:

3. 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

4. Example 1 3x 2 +4x-15

5. Example 2

6. Example 3 x + 4

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

8. REVIEW:

9. Example 4 ( ) 2

10. Example 5

11. Example 6

12. You try example 7:

13. Assignment Page 443 2-32 even Answer must be factored