1. Review 3.2
Write as a fraction /3 Write decimal as a fraction or mixed fraction
Identify as whole, integer, or rational -6 2/3 8 1/5 Simplify the fractions 5/15 12/26

2. 3.3/4 Mult./Div. Fractions
Objective: students will show an understanding on how to multiply and divide fractions.

3. Information Multiplication of fractions Multiply numerator
Multiply denominator
Reduce
Multiplicative inverse: multiplying by reciprocal
Division of Fractions (multiply by reciprocal)
Reciprocal: flip number so product is 1. (multiplicative inverse)
To divide:
Keep it (1st fraction)
Switch division to multiplication
Flip 2nd fraction
Multiply and reduce

4. Multiplicative Inverse
2/3 5
8/9
1/4

5. Examples
2/4 x 7/8
3/5 x -12

6. Examples Cont’d
7/10 ÷ 2/3
3/4 ÷ 4/7

7. ST: Examples
3/5 ÷ 15
8/9 ÷ 4/5
5/6 x 3/8
3 x 2/5

8. Mixed fractions
1 1/4 x 1 2/3
-2 ¼ ÷ 2 2/5

9. St: Mixed numbers
4 1/6 ÷ -1 2/3
-2 2/7 x 1 1/2

10. Variables
m/3 x -12/5
1/10 / 5n/9

11. St: Variables
3y/4 x 5/9
5/3ab / 1/15abc

12. Wrap-up
Questions/Comments
Hw: workbook pg. 31/33