Dividing Unit Fractions and Whole Numbers

Jack ordered four pizzas for a birthday party. The pizzas were cut in eighths. How many slices were there? Which equations correctly solve the problem?

• 4 ÷ ¹/₈ = 32 slices

• ¹/₈ ÷ 4 = 1/32 slices

• 4 ÷ ¹/₈ = 28 slices

• 4 x 8 = 32 slices

Which scenario can be represented by 10 ÷ ⅕ ?

• Franny has a piece of ribbon that is 10 inches long.  She cuts it into 5 pieces.

• Franny has a piece of ribbon that is 10 inches long.  She cuts it into pieces that are 1/5 in long.

• Franny has a piece of ribbon that is 1/5 inch long.  She cuts it into 10 pieces.

• Franny has 10 pieces of ribbon.  Each piece is 1/5 inch long.  

True or false?
1/2 ÷ 7 = 14

• False

• True

• F

• G

• H

• J

• 14

• 7/2

• 1/14

• 3 1/7

• 1/30

• 6/5

• 30

• 1 1/5

• 4/3

• 1/12

• 1 1/3

• 12

What expression is shown by the model?

• Franny has a piece of ribbon that is 10 inches long. She cuts it into 5 pieces.