Adding and Subtracting Mixed Numbers
Adding and Subtracting Fractions with Unlike Denominators
Finding LCM
Adding or Subtracting Fractions with Common Denominators
100

5  1/2 + 2  1/8

7 5/8

100

7/8 - 2/3

5/24

100

6 and 10

30

100

2/7 + 4/7

6/7

200

3  1/4 + 1  5/6

5  1/12

200

7/10 - 1/6

8/15

200

8 and 12

24

200

8/12 - 3/12

5/12

300

6  1/4 - 3  2/5

2  17/20

300

1/4 + 3/8

5/8

300

8 and 3

24

300

7/9 - 4/9

1/3

400

9  1/4 - 2  5/8

6  5/8

400

5/8 - 1/2

1/8

400

10 and 4

20

400

7/10 + 7/10

1  2/5

500

4 - 1  2/5

2  3/5

500

7/10 + 4/5 + 3/4

2  1/4

500

6 and 9

18

500

3/6 + 5/6

1   1/3