Yes
1/13 is the simplest form of 3/39.
13/5 is already in simplest form.
13/4 is in its simplest form. As a mixed number 13/4 = (3×4+1)/4 = 3 1/4.
13/3 = 4 1/3
If you mean 13 and 2/6 then it is 13 and 1/3 in its simplest form
3 and 3/13
3/13
It is 1/3
13/3
-3/13
4.3333
Expressed as a proper fraction in its simplest form, 1/6 + 3/8 = 13/24