1. Chapter 6 Lesson 4 Multiplying Fractions and Mixed Numbers
Objectives:
Multiply fractions and mixed numbers

2. Recall 4 = How do you change a mixed number to an improper fraction?
Multiply the whole number by the denominator
add the product to the numerator
Put answer over the same denominator 31 7 3 7 4 =

3. Lets try a few! Change each mixed number to an improper fraction.3 4 27 4 6 18 7 4 7 2 26 5 1 5 5

4. Three steps for the day. Multiply fractions
Simplifying before multiplying fractions
Multiplying mixed numbers

5. 1. Multiplying fractions
1 1
2 3 1 6 x =
2 3
7 5 6 35 x =

6. 1. Multiplying Fractions
Multiply the numerators
Multiply the denominators
Simplify if necessary

7. Lets try some more! x = = x = x 4 = = 2 3 10 3 1 5 2 3 12 1 4 1 3 3 4
3 1
5 2 x = 3 12 1 4
1 3
3 4 = x = 2 3 8 3 2 3 x 4 = = 2

8. You try some on your own!
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Lesson 6-4 numbers 1-4

9. Simplify Before Multiplying1 3 28
2 3
7 8 x = 4 1 1 7
1 3
3 7 = x 1 1
9 8 1 18 x = 2

10. 2. Simplifying Before Multiplying
Cross cancel by finding the GCF of the diagonals
Multiply numerators
Multiply the denominators
If needed - simplify

11. 2. Simplifying Before Multiplying1 3 28
2 3
7 8 x = 4 1 1 7
1 3
3 7 x = 1 1
4 1
9 8 1 18 x = 2

12. ( ) ( ) ( ) ( ) ( ) ( ) Here are some more! = = = 5 3 6 5 1 2 1 5 5 6
5 3
6 5 1 2 = ( ) ( )
1 5
5 6 1 6 = ( ) ( ) 1 2 =

13. ( ) ( ) ( ) ( ) ( ) ( ) Little harder!!!!! 3 = = 9 2 3 6 7 55 35 2 9 1 2 3 3 = ( ) ( ) ( ) 1 2 1 5 = 9 3 2 1

14. Try some on your own!
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Lesson 6-4 numbers 9 – 12 all

15. 3. Multiply Mixed numbers1 2 2 5 x 4 11 11 5 1 5 1 2 22 5 x = = 2 1

16. 3. Multiply Mixed numbers4 9 1 4 8 x 19 19 9 1 9 1 4 76 9 x = = 2 1

17. 3. Multiplying Mixed Numbers
Convert all mixed numbers to improper fractions
Cross cancel
Multiply numerators
Multiply denominators
Change result back to a mixed number

18. Lets try some! 1 3 3 X 5
= 16 2 5 1 2 7 8 1 X 2
= 4 3 4 1 3 5 X 3
= 20

19. Try some on your own!
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Lesson 6-4 numbers

20. Lets try some with chalkboards!

21. State the steps to multiplying mixed numbers.
Lets Review!
State the steps to multiplying mixed numbers.

22. Homework
Homework Sheet
the first column