Divide Whole Number by Unit Fraction Models

• Draw a rectangle divided into 3 parts and shade 1/6 of each part

• Draw a rectangle divided into 6 parts and shade 3 times

• Draw a rectangle divided into 18 parts and shade all of them

• Draw a rectangle divided into 3 parts and shade all of them

• Have 5 groups of 5 objects each

• Have 1 group of 25 objects

• Divide 5 objects into 5 equal groups

• Divide 5 objects into 1/5 groups

2 ÷ 1/5 =

• 1/10

• 10

• 2/5

3 ÷ 1/ 4 =

• 12

• 1/12

• 3/4

1/4 ÷ 2 = 

• 8

• 1/8

• 12

• 1/12

When dividing whole numbers and unit fractions, you should remember.... (2 answers)

• When you start with a unit fraction, you'll end with a whole number.

• When you start with a unit fraction, you'll end with a unit fraction.

• When you start with a whole number, you'll end with a unit fraction.

• When you start with a whole number, you'll end with a whole number.

Identify all models that show 1/4 of the whole shaded. Hint: there are 2.

• A

• B

• C

• D

• E

5.3(J) represent division of a unit fraction by a whole number and the division of a whole number by a unit fraction such as 1/3 / 7 and 7 / 1/3 using objects and pictorial models, including area models

• F

• G

• H

• J

divide whole numbers by unit fractions and unit fractions by whole numbers

• A

• B

• C

• D

6 ÷ ⅔ =_

• 9

• 2

• 18

• 12