LCM
GCF
Adding Fractions
Subtracting Fractions
Unlike Denominators
100

What is the LCM of 4 and 22?

44

100

What is the GCF of 12 and 18 ?

6

100

1/6+3/6=

2/3

100

2/3 - 1/3 =

1/3

100

1/2 + 1/4 =

3/4

200

What is the LCM of 6 and 8?`

24

200

What is the GCF of 22 and 36?

2

200

2/7+4/7=

6/7

200

5/8 - 1/8 =

1/2

200

1/3-2/9=

1/9

300

What is the LCM of 3 and 7?

21

300

What is the GCF of 28 and 42?

14

300

5/8+2/8=

7/8

300

14/14 - 4/14=

5/7

300

37/60-7/20=

4/15

400

What is the LCM of 6 and 24?

24

400

What is the GCF of 35 and 84?

7

400

20/24+2/24=

11/12

400

3/8-1/8= 

1/4

400

26/27- 2/9 =

20/27

500

What is the LCM of 9 and 11?

99

500

What is the GCF of 72 and 108?

36

500

18/54+9/54=

1/2

500

27/35- 9/35= 

18/35

500

5/9 + 1/4 =

29/36