Simplify9/11z-4/11z

To simplify the expression (9/11z) - (4/11z), we first need to find a common denominator for the two fractions. In this case, the common denominator is 11z since both fractions have this as their denominator.

Now, let's rewrite the expression with the common denominator:

(9/11z) - (4/11z)

Since the denominators are the same, we can subtract the numerators directly:

(9 - 4) / 11z

Simplifying further, we have:

5 / 11z

Therefore, the simplified form of (9/11z) - (4/11z) is 5/11z.