Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-2" was replaced by "^(-2)".

(2): "4.32" was replaced by "(432/100)".

Step  1  :

 1.1     10 = 2•5

(10)^-2 = (2•5)^(-2) = (2)^(-2) • (5)^(-2)

Equation at the end of step  1  :

  432
  ——— • ((2)(-2)•(5)(-2))
  100

Step  2  :

            108
 Simplify   ———
            25 

Equation at the end of step  2  :

  108
  ——— • ((2)(-2)•(5)(-2))
  25 

Step  3  :

Multiplying exponents :

 3.1    5²  multiplied by  5²   = 5^{(2 + 2)} = 5⁴

Canceling Out :

 3.2      Canceling out  2² as it appears on both sides of the fraction line

Final result :

   27           
  ——— = 0.04320 
  625