Dividing Fractions by Wholes and Wholes by Fractions

Which is the correct order when dividing fractions?

• Keep, flip, change, simplify

• Keep, change, simplify, and flip

• Keep, change, flip, simplify

• Change, flip, keep, simplify

What does it mean to divide 5 by 1/4

• It means to find out how many 1/5s are in 1/4

• It means to find out how many 1/4s are in 1/5

• It means to find out how may 1/5s are in 4 wholes

• It means to find out how many 1/4s are in 5 wholes

How many 1/3s are there in 1 whole?

• 3

• 6

• 9

• 1

Use a number line as your model. Divide 5 by 1/4. What is your answer?

• 5/4

• 4/5

• 20/4

• 20

Danilsa has ½ cup of butter.  She pours the same amount into each of three popcorn cartons.  Which equation represents the fraction of the cup of butter, C, that is in each carton?

• 1/2 ÷ 1/3 = C

• 3 ÷ 1/2 = C

• 1/2 ÷ 3 = C

• 2 ÷ 3 = C

Talla wants to run 4 miles. The track surrounding the field where he plays football is 1/5 mile long. What equation could be used to find the number of laps, L, which Talla will need to run?

• 1/5 ÷ 4 = L

• 1/5 × 4 = L

• 4 × 1/5 = L

• 4 ÷ 1/5 = L

• 14

• 7/2

• 1/14

• 3 1/7

What is the value of the expression?
¼ ÷ 7

• 28

• 7/4

• 1/4

• 1/28

• 1/12
• 3/4
• 12
• 4/3

• 2
• 4
• 1
• 1/8