Dividing a Whole Number by a Fraction and a Fraction by a Whole Number

How do you divide fractions with whole numbers?

• Change the whole number to a fraction by having the denominator be 1. Keep the 1st fraction, change the sign to multiply, flip the 2nd fraction; simplify if needed

• Change the whole number to a fraction by dividing by 1, multiply the numerators and denominators

• Keep, Change, and Flip; simplify if needed

• Multiply numerators & Multiply denominators; simplify if needed

Which situation can be represented by 6 ÷ 1/3?

• Rita has a piece of ribbon that is 1/3 foot long. She cuts it into 6 pieces having the same length. How many feet long is each piece of ribbon?

• Rita has 6 pieces of ribbon. Each piece is 1/3 foot long. How many feet of ribbon does Rita have in all?

• Rita has a piece of ribbon that is 6 feet long. She cuts it into pieces that are 1/3 foot long. How many pieces of ribbon does Rita have?

• Rita has a piece of ribbon that is 6 feet long. She cuts it into 3 pieces. How many feet long is each piece of ribbon?

Identify the equation using the model then solve the problem.

• 2 ÷ 1/8 = 16

• 1/8 ÷ 2 = 1/16

• 2 ÷ 8 = 1/4

• 8 ÷ 2 = 4

What is 1/8 ÷ 5 ?

• 40

• 45

• 1/40

• 1/45

• 1/7

• 7

• 12

• 1/12

• A

• B

• C

• D

What is the quotient?

• 1/3

• 2

• 1/6

• 3

1/3 ÷ 2

• 6

• 1

• 1/6

• 1/5

• 1/28

• 1/11

• 1/3

• 4/7