Respuesta :

2. 1 1/25
4. 1/200
5. 9/10
7. 1 1/4
8. 7/1000
10. 3 1/250
11. 4 3/50
13. 3 1/4
14. 4 7/1000
16. 1 1/1000
17. 1 1/10
19. 1 111/1000

i have a feeling that some might be wrong but its better than nothing.
hope this helps!