Dividing Fractions

Definitions/Rules

100

The bottom number of a fraction

What is denominator

200

The top number of a fraction

What is the numerator 

300

The three letters used when dividing fractions? 

What is Keep, Change, Reciprocate. 

400

What do you turn a mixed number into when dividing fractions. 

An improper fraction

500

What is the correct term for "Flip"? 

What is Reciprocal? 

Dividing Fraction Steps

100

If you are dividing a whole number by a fraction you must first do what to the whole number?

Put a 1 underneath it to make it a fraction.

200

When dividing fractions, what do you do to the first fraction in the problem?

KEEP it the same. 

300

When dividing fractions, what do you do to the division sign?

Change it to multiplication.

400

When dividing fractions, what must you do to the second fraction in the problem?

Reciprocal it

500

Fractions should always be in this form unless told otherwise: ______.

Simplest form

Dividing Whole #s and Fractions

100

1/100 divided by 4

1/400

200

3 ÷ 1/3 

9

300

1/3 ÷ 4

1/12

400

2 ÷ 1/4

8

500

1/4 ÷ 5

1/20

Surprise!!!!!!!

100

1/2 ÷ 1/3 - Simplest form 

3/2 = 1 1/2

200

3/4 ÷ 2/5 - Simplest Form 

15/8 = 1 7/8

300

1 4/7 ÷ 2/3 - Simplest Form 

33/14 = 2 5/7

400

5/9 ÷ 1/2 - Simplest Form 

10/9 = 1 1/9 

500

5 3/4 divided by 6 - Simplest Form 

What is 23/24

Dividing Whole #s and Fractions

100

1 ÷ 1/5

5

200

3 ÷ 1/3

9

300

1/6 ÷ 3

1/18

400

1/4 ÷ 6

1/24

500

5 1/2 ÷ 1/4

What is 22