1. Adding/Subtracting Unlike Fractions Section 3.6 Numerical and Algebraic

2. Notes ___________ fractions are fractions with different denominators. Use the _________ of the denominators to rename the fractions before adding them.

3. Examples

4. Examples

5. Subtract Unlike Fractions The rule for subtracting fractions with unlike denominators is similar to the rule for addition.

6. Example

7. H.O.T. Problem Is the difference between a positive mixed number and a negative mixed number always, sometimes, or never positive? Justify your answer. ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________

8. H.O.T. Problem Explain why you cannot add or subtract fractions with unlike denominators without renaming the fractions. You may use a diagram to illustrate your answer. ___________________________________ ___________________________________