Write the difference in simplest form 11/12-2/12

Simple. first make sure there are common denominators. There is, thus, you can now subtract.

11/12-2/12.

11-2=9

and you don't subtract denominators.

Then, 9/12

you can simplify even more by dividing both the numerator and denominator by 3. So 9/3=3 and 12/3=4

So, in simplest form, your answer is 3/4.