No. Only 3 and 5 go into 15, but neither of those go into 28.
28/15 is in its simplest form.
No 28/29 cannot be reduced.
28/16 = 7/4
51/28 can't be reduced.
28 / 197 .... it does not reduce
yes to 25 over 28
7/16
no
28/15 = 113/15
15 over 25 reduces to 3 over 5
28/25 = 28/25 you cant reduce that
15/28 is in its simplest form.