Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-2" was replaced by "^(-2)".

Step  1  :

            6
 Simplify   —
            7

Equation at the end of step  1  :

  6
 (—)-2
  7

Step  2  :

 2.1     6 = 2•3

(6)^-2 = (2•3)^(-2) = (2)^(-2) • (3)^(-2)

Final result :

     1 • 72  
  ———————————
  1 • (22•32)