Solution - Simplification or other simple results

Step  1  :

            81
 Simplify   ——
            16

Equation at the end of step  1  :

  81
 (——)3) ÷ 4
  16

Step  2  :

 2.1     81 = 34

(81)³ = (3⁴)³ = 3¹²  2.2     16 = 2⁴ (16)³ = (2⁴)³ = 2¹²

Equation at the end of step  2  :

  312
  ——— ÷ 4
  212

Step  3  :

         312      
 Divide  ———  by  4
         212      

Multiplying exponents :

 3.1    2¹²  multiplied by  2²   = 2^{(12 + 2)} = 2¹⁴

Final result :

  312            
  ——— = 32.43658 
  214