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)".

(2): "3.94" was replaced by "(394/100)".

Step  1  :

            197
 Simplify   ———
            50 

Equation at the end of step  1  :

  197
 (———)-1
  50 

Step  2  :

 2.1     50 = 2•5² (50)^-1 = (2•5²)^(-1) = (2)^(-1) • (5)^(-2)

Final result :

  1 • (2•52)
  ——————————
   1 • 197