Unlike Fractions SP

Least Common Multiples

100

What is the Least Common Multiple of 10 and 15?

30

200

Least Common Multiple of 6 and 9?

18

300

Least common multiple of 7 and 2

14

400

Least common multiple of 3 and 4

12

500

Least common multiple of 5 and 4

20

Greatest Common Factors

100

Greatest common factor between 5 and 10

5

200

Greatest common factor between 12 and 10

2

300

Greatest Common Factor between 21 and 9

3

400

Greatest Common Factor between 4 and 2

2

500

Greatest common factor between 50 and 100

50

Adding Unlike Fractions

100

1/3 + 1/2

5/6

200

1/3 + 1/4 

7/12

300

1/3 + 1/5

8/15

400

1/3 + 1/6

3/6 = 1/2

500

1/3 + 3/2

11/6

Subtracting Unlike Fractions

100

1/3 - 1/4

1/12

200

1/2 - 1/3

1/6

300

1/3 - 1/5

2/15

400

1/3 - 1/6

1/6

500

3/2 - 1/2

2/2 = 1

Simplify

100

2/4

1/2

200

3/9

1/3

300

5/20

1/4

400

8/24

1/3

500

10/20

1/2