Hey there Maria!
Think of it this way:
18 divided by 18 is 1, right? and 17 divided by 16 is going to be larger than one, because 16 goes into 17 one time with one as a remainder.
So, Greg would not be correct because while 18 is larger than 17, the fraction [tex] \frac{17}{16} [/tex] is an improper fraction, making it larger than [tex] \frac{18}{18} [/tex], which would equal 1!
