Division and Multiplications of fractions

Division vocab

100

We use multiplication to help with division of fractions.  True or false 

True 

200

What is the opposite operation to multiplication? 

Division 

300

What is a phrase that we can use to help solve division problems? 

"How many times does... go into....?" / "How many... are in...?"

400

What is another name for the reciprocal? 

inverting, flipping or turning upside down 

500

What is the reciprocal? 

When the numerator and denominator have changed places. 

Solving fractions using division

100

1/2 ÷ 1/4 

2

200

4/5 ÷ 2/3 

6/5 or 1 1/5

300

3 ÷ 1/4 

12

400

1 1/2 ÷ 3/4 

2

500

18/35 ÷ 6/7 

3/5 

Finding reciprocal

100

6/7 

7/6 

200

1/4

4

300

5

1/5

400

1 2/3

5/3

500

1 5/6 

11/6

Simplify and ordering

100

2/3 ... 1/3

Make this into a true mathematical statement! (using greater than or less than)

2/3 > 1/3 

200

4/28 

1/7

300

9/27

1/3

400

1/7 ... 1/5 

Make this into a true mathematical statement! (using greater than or less than)

1/7 < 1/5 

500

Choose the fraction that is not its simplest form: 

A) 7/63  B)9/62 C) 11/81 D) 13/72

A) 7/63

Solving fractions using multiplication

100

1/2 x 1/4 

1/8 

200

Find 3/4 of 100

75

300

8/5 x 2/3

16/15 or 1 1/15

400

15/4 x 8/5

6

500

3/4 of 5 1/3 

4