Show:
halves
thirds
fourths
fifths
eighths
100

1/2 = 2/?

2/4

100

1/3 = 2/?

2/6

100

1/4 - 2/?

2/8

100

1/5=2/?

2/10

100

1/8 = 2/?

2/16

200

2/2 = 

3/3 0r similar

200

2/3 = ?/6

4/6

200

1/4 = ?/12

3/12

200

1/5 = ?/15

3/15

200

1/8 = ?/24

3/24

300

1/2 = ?/20

10/20

300

2/3 = ?/9

6/9

300

1/4 = ?/100

25/100

300

2/5 = 8/?

8/20

300

1/8 = 5/?

5/40

400

1/2 = 50/?

50/100

400

2/3 = 10/?

10/15

400

3/4 = ?/100

75/100

400

3/5 = ?/100

60/100

400

3/8 = ?/80

30/80

500

1/2 = ?/150

75/150

500

2/3 = 100/?

100/150

500

3/4 = 750/?

750/1000

500

4/5 = ?/1000

800/1000

500

5/8 = 1000/?

1000/1600