Add and Subtract Fractions With Unlike Denominators

Column 1

100

1/2 + 1/4

3/4

200

1/3 + 1/4

7/12

300

2/5 - 1/6

7/30

400

2/3 - 1/4

5/12

500

1/2 + 3/10

8/10

4/5

Column 2

100

2/3 + 1/6

5/6

200

11/12 - 1/6

9/12

3/4

300

1/2 + 3/8

7/8

400

3/4 + 1/6

11/12

500

4/5 - 1/2

3/10

Column 3

100

3/5 + 1/10

7/10

200

7/10 - 2/5

3/10

300

5/12 + 1/3

9/12

3/4

400

1/2 - 2/5

1/10

500

1/8 + 5/6

23/24

Column 4

100

3/4 - 1/2

1/4

200

2/5 + 1/2

9/10

300

7/8 - 1/4

5/8

400

3/10 + 1/4

22/40

11/20

500

5/6 - 1/4

7/12

Column 5

100

5/6 - 1/3

3/6

1/2

200

1/9 + 2/3 

7/9

300

2/3 + 1/5

13/15

400

3/7 + 1/2

13/14

500

9/10 - 1/3

17/30