1. 11.5 Adding and Subtracting Rational Expressions

2. Adding and Subtracting Rational Expressions
In order to add or subtract fractions, we must have a common denominator.
In order to add or subtract rational expressions, we must find the least common denominator.
The least common denominator is the least common multiple of the denominators

3. Adding and Subtracting Rational Expressions
Find the LCD
Rewrite each expression so that they have the LCD
Add or Subtract the numerators and put the resulting expression over the LCD
Simplify if possible

4. Perform the indicated operation

5. Perform the indicated operation

6. Perform the indicated operation

7. Perform the indicated operation

8. Perform the indicated operation

9. Perform the indicated operation

10. Homework
P476 #12 – 70 multiples of 3 (start at 12)