1. 11. 6 Addition and Subtraction Rational Expressions

2. Addding Fractions
REVIEW:

3. Example 1
x + 4

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

5. REVIEW:

6. Example 2
( ) 2

7. Example 3

8. Addition and Subtraction with unlike denominators
Steps:
Find a least common denominator (LCD)
Rename fractions
Add or subtract numerators

9. Adding Fractions with unlike denominators REVIEW:

10. How to get a LCD with RE Factor the denominators
Take one of each factor
If there are duplicates take the one with the highest exponent

11. Example 4

12. Example 5:

13. Example 6:

14. Example 7:

15. Example 8:

16. Example 9:

22. Homework
11.6 TB: Page 585 (2-18 even, all)