Dividing Fractions. A. Review Examples of fractions

Dividing Fractions

A. Review

Examples of fractions

A. Review

B. Dividing by whole numbers

2÷2

1? 3÷

2

1?

1/2 1/2 ? 2÷ ? 3÷

B. Dividing by whole numbers

1/4

2÷2

1

4

13÷

2

1

6

1

1/6

1/2 1/2 2÷

3÷

B. Dividing by whole numbers

How do you divide a fraction by a number?

When dividing a fraction by a whole number, multiply the

denominator (the bottom number) with the whole number

2÷2

13÷

2

17÷

2

1

2÷2

1

4

1

B. Dividing by whole numbers

Do the following divisions without calculators. Don’t forget to simplify

When you’re done, check your answers with the online calculator

http://www.calculatorsoup.com/calculators/math/fractions.php

4÷2

1 5÷

2

1 2÷

3

1

3÷3

1 3÷

3

2 4÷

3

2

2÷4

1 2÷

4

3 3÷

4

3

C. Dividing by simple fractions

3

1 ÷

2

1?

1/2 ?3

1 ÷

C. Dividing by simple fractions

3

1 ÷

2

1

2

3

1/2 1/2 1/2

1/2 3

1 ÷

C. Dividing by simple fractions

4

1 ÷

2

1?

1/2 ?4

1 ÷

C. Dividing by simple fractions

4

1 ÷

2

12

2

4

1/2 1/2 1/2 1/2 1/2

3

1 ÷

C. Dividing by Simple Fractions

How do you divide a fraction by a fraction?

When dividing a fraction by a fraction, multiply the denominator (bottom number) of the first fraction with the numerator (top number) of the second fraction, AND multiply the numerator (top number) of the first fraction with the denominator (bottom number) of the second fraction.

2÷2

13÷

2

17÷

2

1

3

1÷

2

1

2

3

C. Dividing by simple fractions

Do the following divisions without calculators. Don’t forget to simplify

When you’re done, check your answers with the online calculator

http://www.calculatorsoup.com/calculators/math/fractions.php

2

1÷

2

1

3

1÷

2

1

4

1÷

2

1

2

3÷

2

1

3

2÷

2

1

4

3÷

2

1

2

5÷

2

1

3

4÷

2

1

4

5÷

2

1

D. Mixed Practice

Work with a partner for the practice problems

Check with calculator if you really need to

REMEMBER: a whole number is same as that number over 1

1

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