The simplest form is just 75 - nothing more.
It is 75/1Any integer can be expressed as a fraction in its simplest form by putting it over 1.
1/3 Is The Very Simplest Form
Since the numerator of the fraction is 1, the proper fraction 1/75 is already expressed in its simplest form.
1 over 3
15/75 = 1/5
5 over 75 simplifies to 1/15
1/25
1/5
1/2
1/3
1/75
1/4