Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "1.05" was replaced by "(105/100)".

Step  1  :

            21
 Simplify   ——
            20

Equation at the end of step  1  :

  21
 (——)20
  20

Step  2  :

 2.1     21 = 3•7

(21)²⁰ = (3•7)²⁰ = 3²⁰ • 7²⁰  2.2     20 = 2²•5 (20)²⁰ = (2²•5)²⁰ = 2⁴⁰ • 5²⁰

Final result :

  (320•720)           
  ————————— = 2.65330 
  (240•520)