Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-3" was replaced by "^(-3)".

Step  1  :

            4
 Simplify   —
            5

Equation at the end of step  1  :

  4
 (—)-3
  5

Step  2  :

 2.1     4 = 22

(4)^-3 = (2²)^(-3) = (2)^(-6)

Final result :

  1 • 53
  ——————
  1 • 26