Yes.
21/25
16/25
39/50
45/100ths.
160/19 is in its simplest form.
That is the simplest form. 19 is a prime number.
19/29 is in its simplest form.
19/20 is in its simplest form.
13 to 19 is in its simplest form.
16/19 is in its simplest form.
19/25 is the simplest form.