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
  0 -  (— • ——)
        4   4 

Step  2  :

            1
 Simplify   —
            4

Equation at the end of step  2  :

        1   -1
  0 -  (— • ——)
        4   4 

Step  3  :

Final result :

   1           
  —— = 0.06250 
  16