Perform the indicated operation.


11-6/ 7-7

Is this right:
11-6=5
7-7=0
5/0=undefined

(11-6)/(7-7)

If that is the way it is organized, you are right.

However, from the way you have it written, it could also be:

11 - 6/7 - 7 = 3 1/7

It helps to post your data more clearly.