Solution - Simplification or other simple results

Step  1  :

            25
 Simplify   ——
            64

Equation at the end of step  1  :

  25
 (——)3) ÷ 2
  64

Step  2  :

 2.1     25 = 52

(25)³ = (5²)³ = 5⁶  2.2     64 = 2⁶ (64)³ = (2⁶)³ = 2¹⁸

Equation at the end of step  2  :

   56
  ——— ÷ 2
  218

Step  3  :

          56      
 Divide  ———  by  2
         218      

Multiplying exponents :

 3.1    2¹⁸  multiplied by  2¹   = 2^{(18 + 1)} = 2¹⁹

Final result :

   56           
  ——— = 0.02980 
  219