Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

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

(2): "6.69" was replaced by "(669/100)".

Step  1  :

 1.1     10 = 2•5

(10)^-1 = (2•5)^(-1) = (2)^(-1) • (5)^(-1)

Equation at the end of step  1  :

  669
  ——— • ((2)(-1)•(5)(-1))
  100

Step  2  :

            669
 Simplify   ———
            100

Equation at the end of step  2  :

  669
  ——— • ((2)(-1)•(5)(-1))
  100

Step  3  :

Multiplying exponents :

 3.1    2²  multiplied by  2¹   = 2^{(2 + 1)} = 2³

Multiplying exponents :

 3.2    5²  multiplied by  5¹   = 5^{(2 + 1)} = 5³

Final result :

   669           
  ———— = 0.66900 
  1000