Adding and Subtracting Fractions (like and unlike denominators)

A

100

3/5 + 4/5

7/5 OR 

1 2/5 

200

14/15- 13/15

1/15

300

6/9 - 5/9 

1/9

400

1/2 + 2/3 

7/6

OR 

1 1/6

500

5/7 - 2/3

1/21

B

100

1/15 + 7/15 

8/15 

200

7/11 - 4/11

3/11

300

2/4  + 3/4

5/4

OR

1 1/4

400

2/7 + 6/10

62/70

OR

31/35

500

6/7 - 2/6 

22/42

OR

11/21

C

100

8/10 + 2/10

10/10

OR

1

200

19/25 - 11/ 25

8/25

300

2/10 + 3/5 

40/50

OR

4/5

400

2/7 + 1/4 

15/28

500

4/5 - 2/3

2/15

D

100

3/13 + 1/13

4/13

200

4/5 - 2/5 

2/5

300

4/5 - 2/4

6/20

OR 

3/10

400

3/5 + 3/8 

39/40

500

2/8 - 1/6

4/48

OR

1/12

E

100

2/8+ 5/8

7/8

200

6/12 - 4/12

2/12

OR 

1/6

300

2/7 - 1/4 

1/28

400

1/4 + 6/8

8/7

OR 

1

500

2/3 - 1/6 

3/6 

OR 

1/2