1
2
100

1/3 + 2/5

8/15

100

2/3 + 1/4 

11/12

200

2/6 + 1/2 

5/6

200

5/15 + 2/5

11/15

300

3/7 + 2/3

23/21

300

7/8 + 4/6 

37/24

400

2/8 + 3/4

16/16 or 1 whole

400

2/10 + 7/20 

11/20

500

5/20 + 10/40

30/40

500

10/80 + 5/10 

60/80