That is very badly written. If you don't want to use LaTeX, at least write it as 7/12+ 8/15
Yes 67/60 is the correct answer. Whether you write that as 67/60 or "1 and 7/60" depends upon what you want to with it, which you prefer and, perhaps most importantly, what you teacher wants.
But when you say "That was by adding 67 and 60 together then just putting the60 back under." I have absolutely no idea why you would add the numerator and denominator. There NO arithmetic operation that requires that.