Putting it into percentage form you will get approximately 61%. To do this you simply divide 17 by 28. So based on percentage I would say that if this were a grade then this is not very good. However if this was say a batting average (in this case the hitter would be hitting .607), then that would be excellent. So to your question of how "good" it is, I'll have to say that it all depends on the circumstances surrounding your data.
It is: 17+28+15 = 60
227 - 1985 A Good Citizen 2-17 was released on: USA: 28 February 1987
17/28 is in its simplest form.
28 x 17 = 476
5 + 23 = 28or11 + 17 = 285 + 23 = 28or11 + 17 = 285 + 23 = 28or11 + 17 = 285 + 23 = 28or11 + 17 = 28
17 only goes into 28 once.
The only common factor between 17 & 28 is 1, so it is in simplest form already.
45 - 28 = 17.
17 + 11 = 28
45 - 17 = 28
−45 + 17 = -28
64It is the same as 17+28+19 = 64