Solution - Simplification or other simple results

Step  1  :

 1.1     4 = 22

(4)³ = (2²)³ = 2⁶

Equation at the end of step  1  :

  49
  —— ÷ 2
  26

Step  2  :

            49
 Simplify   ——
            26

Equation at the end of step  2  :

  49
  —— ÷ 2
  64

Step  3  :

         49      
 Divide  ——  by  2
         64      

Final result :

   49           
  ——— = 0.38281 
  128