1. Multiplying and Dividng Fractions
Reciprocal
Multiplying Fractions
Dividing Fractions
QUIZ: Multiplying
Fractions
QUIZ: Dividing
Fractions

2. Multiplying Fractions
Change any mixed numbers into improper fractions.
Change any whole numbers into improper fractions by putting 1 under the whole number.
Cross cancel wherever possible.
Multiply horizontally.
Reduce if necessary.
EXAMPLES

3. Reciprocal To find the reciprocal of a fractions, flip it! EXAMPLES:
You need the reciprocal when dividing fractions!
EXAMPLES:
2½ =

4. Dividing Fractions EXAMPLES
Change any mixed numbers into improper fractions.
Change any whole numbers into improper fractions by putting 1 under the whole number.
KEEP – SWITCH - FLIP
Cross cancel wherever possible.
Multiply horizontally.
Reduce if necessary.
EXAMPLES

5. Examples of multiplying fractions
Another
Example X 2 3 X 1 1
X 2 = 2
1 X 3 = 3 X

6. Examples of multiplying fractions
5 1
2 4 5 8 X

7. 5 10 9 12 1 4 3 2 5 12 9 10 X 1 4 6 2 3 Examples of dividing fractions
Another
Example
FLIP
SWITCH
KEEP X 1 3 4 2 4 6 2 3 x

8. 3 ½ 2 ¼ 7 9 2 4 7 4 2 9 28 18 1 1 x Examples of dividing fractions
3 ½ ¼
KEEP
SWITCH
FLIP 28 18 1 5 9 1 10 18 x

9. CHECK
ANSWERS

10. Back to Quiz

11. Quiz: Dividing Fractions
6 divided by 3 ½ =
4/5 divided by 2/5 =
1 ½ divided by 3 ¾ =
3 ½ divided by 1 ¾ =
2 ½ divided by ½ =
5 1/3 divided by 4/9 =
Check your
answers

12. Answers: Dividing Fractions
6 divided by 3 ½ = /7
4/5 divided by 2/5 = 2
1 ½ divided by 3 ¾ = 2/5
3 ½ divided by 1 ¾ = 2
2 ½ divided by ½ = 1
5 1/3 divided by 4/9 = 12
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