Fractions

1

100

Find the lowest common denominator

1/2 & 1/8 

8

200

Subtract these fractions

6/9 - 3/9

3/9

300

Subtract these fractions 

9/12 - 6/12

3/12

400

Find the lowest common denominator 

3/7 & 6/21

21

500

Add these fractions

3/9 + 2/18

8/18

2

100

What number is the numerator?

3/6

3

200

Add these fractions 

5/10 + 4/10

9/10

300

Find the lowest common denominator

2/3 & 8/33

33

400

Add these fractions 

3/8 + 4/12

17/24

500

Subtract these fractions

2/3 - 5/12

3/12

3

100

Subtract these fractions

5/9 - 3/9

2/9

200

Add these fractions 

2/4 + 2/8

6/8, 12/16, 24/32

300

Subtract these fractions

4/6 - 2/6

2/6

400

How do we find the least common denominator?

By skip counting until you get to the first number that both numbers have in common

500

Add these fractions

1/4 + 1/3 + 3/12

10/12

4

100

Add these fractions 

1/3 + 3/9

6/9 or 18/27

200

Add these fractions

1/3 + 2/9

5/9 or 15/27

300

Who is the best teacher?

Mrs. Monk

400

Add these fractions

16/32 + 2/32

18/32

500

Add these fractions

4/14 + 1/7

6/14

5

100

What number is the denominator 

12/24

24

200

Add these fractions 

2/4 + 1/4

3/4

300

Find the lowest common denominator 

3/8 & 2/6

24

400

Subtract these fractions

4/9 - 1/3

1/9

500

Subtract these fractions

3/4 - 1/8 

5/8