No. 15/37 is as simple as it can get.
No, you cannot simplify it any more than that.
yes: 15 over 37
no you cant simplify 37/50
37/30 = 1 7/30
2/5
2/5
Since the denominator of the fraction is prime, the proper fraction 30/37 is already in its simplest form.
12/30 = 2/5
30/9 = 10/3
6/30 = 1/5.
30/20 = 3/2 = 1.5