Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

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

Step  1  :

            1
 Simplify   —
            4

Equation at the end of step  1  :

  1
 (—)-1
  4

Step  2  :

 2.1     4 = 2² (4)^-1 = (2²)^(-1) = (2)^(-2)

Final result :

  22           
  —— = 4.00000 
  1