Solution - Simplification or other simple results

Step  1  :

 1.1     4 = 22

(4)³ = (2²)³ = 2⁶

Equation at the end of step  1  :

Step  2  :

             3
 Simplify   ——
            26

Final result :

   3           
  —— = 0.04688 
  64