1. Essential Question: Why is dividing the same as multiplying by the reciprocal of that number?

2. 9-x: Handling Fractions  Throughout this section, we will be focusing on the four operations with fractions.  YOU ARE NOT TO USE A CALCULATOR to simplify these expressions  It’ll be important when we start dealing with variables (which can’t be solved with a calculator)

3. 9-x: Handling Fractions  Multiplying Fractions  To multiply fractions, multiply the numerators together and multiply the denominators together.  You can simplify at any point once you have it set as multiplication  Examples: 

4. 9-x: Handling Fractions  Y OUR TURN  Find each product. Simplify if possible. 

5. 9-x: Handling Fractions  Dividing Fractions  To divide fractions, change the division into multiplication, and flip the fraction after the division sign.  Example:   Y OUR TURN 

6. 9-x: Handling Fractions  Adding/Subtracting Fractions  Before you can add or subtract fractions, the fractions must have a common denominator.  After they have a common denominator, simply add or subtract the numerator.  The easiest way to get a common denominator is to multiply each term by the opposite denominator  Example: 

7. 9-x: Handling Fractions  Y OUR TURN  Find each sum or difference. Simplify if possible. 

8. 9-x: Handling Functions  Assignment  Worksheet to be distributed