Multiply and Divide Fractions Review 5th

How do you multiply fractions?

• Keep, change, flip!

  Dividing is multiplying by the reciprocal.

• Cross multiply.

  Butterfly method.

• Straight across.

  Numerator x numerator

  Denominator x denominator

• Extend the line and skip count to find LCD

How do you divide fractions?

• Keep, change, flip!

  Dividing is multiplying by the reciprocal.

• Cross multiply.

  Butterfly method.

• Straight across.

  Numerator x numerator

  Denominator x denominator

• Extend the line and skip count to find LCD

Which model represents 3/5 of 2?

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

Did you input 1/4 divided by 2/1 and get 1/8?

• Yes

• No, I did/got something else.

• A

• B

• C

• D

• 1/3 divided by 3/1 = 9

• 1/3 of 9/1 = 3

• 1/3 divided by 3/1 = 3/3

• 1/3 divided by 3/1 = 1/9