adding and subtracting like denominators

Fraction Addition RED

100

1/3 + 1/3

2/3

200

5/8 + 2/8

7/8

300

1/9 + 2/9 + 1/9

4/9

400

1/4 + 2/4

3/4

500

2/5 + 2/5

4/5

Fraction Addition BLUE

100

1/2 + 3/2

4/2 = 2

200

1/5 + 6/5

7/5 = 1  2/5

300

8/7 + 1/7

9/7 = 1  2/7

400

2/3 + 6/3

8/3 = 2   2/3

500

2/5 + 2/5

4/5

Fraction simplest form

100

What is the simplest version of all of these? 

3/6, 4/8, 5/10, 25/50

1/2

200

What is the simplest version of all of these?

25/100, 5/20, 4/16, 3/12

1/4

300

What is the simplest version of all of these?

2/2, 3/3, 4/4, 5/5

1

400

What is the simplest version of all of these?

6/8, 9/12, 12/16

3/4

500

What is the simplest version of all of these? 

3/6, 4/8, 5/10, 6,12

1/2

Fraction Addition YELLOW

100

4/5 + 4/5

8/5 =  1  3/5

200

2/3 + 1/3

3/3 = 1

300

10/11 + 2/11

12/11 = 1   1/11

400

3/4 + 5/4

8/4 = 2

500

1/5 + 15/5

16/5 = 3   1/5