Show:
reciprocal and sequences
Multiplying Fraction
Simplifying Fractions
Dividing Fractions
Vocab
100
What is the reciprocal of 1/8
What is 8/1
100
Multiply: 1/3 x 1/4
What is 1/12
100

28/49

4/7

100
2/3 divided by 4/5
What is 5/6
100

In order to add fractions, we need to have what first?

Common denominators

200
What is the reciprocal of 6/9
What is 9/6
200
7/8 x 4/21
What is 1/6
200

3/27

1/9

200
1/8 divided by 3/4
What is 1/6
200

In order to subtract fractions, we need to have what first?

Common denominators

300
What is the reciprocal of 2/3
What is 3/2
300
3/5 x 2/9
What is 2/15
300

24/40

3/5

300
5 divided by 4/9
What is 11 1/4
300

How do we multiply fractions? 

Straight across. No need for common denominators.

400
Find the next two numbers in the sequence: 6, 12, 24, 48, ___, _____
What is 96, 192
400
5/6 x 9
What is 7 1/2
400

39/13

3 or 3/1

400
3/8 divided by 6
What is 1/16
400

How do we divide fractions?

KCF- Keep Change Flip EX 1/2  /  1/4 = 1/2 x 4/1

500
Find the next two numbers in the sequence: 20, 17 1/2, 15, 12 1/2, _____, _____
What is 10, 7 1/2
500
3/10 x 4/9
What is 2/15
500

64/12

5 1/3

500
3/8 divided by 2/3
What is 9/16
500

Explain how to find LCM or least common multiple

6 and 5

6: 6,12,18,24,30

5:5,10,15,20,25,30