The simplest form of the expression 4m-17/m^2-16 + 3m-11/m^2-16 has the numerator in the denominator.

For this case we have the following expression:
 
 Since the denominator is equal, then we can add the numerator.
 We have then:
 
 Adding similar terms we have:
 
 Rewriting we have:
 
 Doing common factor in the numerator we have:
 
 Factoring the denominator we have:
 
 Canceling similar terms we have:
 
 
 The simplest form of the expression has 7 in the numerator and m+4 in the denominator.