4 over 5 is in simplest form.
The fraction 44 over 99 put in its simplest form is 4/9
3 over 12 put in simplest form is 1/4.
33/50 is already in simplest form.
52/7 is already in its simplest form
28/3 is in its simplest form.
11 over 17
1/85
15/73
1/5
7/8
27/125