Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-12" was replaced by "^(-12)".

(2): "6.42" was replaced by "(642/100)".

Step  1  :

 1.1     10 = 2•5

(10)^-12 = (2•5)^(-12) = (2)^(-12) • (5)^(-12)

Equation at the end of step  1  :

  642
  ——— • ((2)(-12)•(5)(-12))
  100

Step  2  :

            321
 Simplify   ———
            50 

Equation at the end of step  2  :

  321
  ——— • ((2)(-12)•(5)(-12))
  50 

Step  3  :

Multiplying exponents :

 3.1    2¹  multiplied by  2¹²   = 2^{(1 + 12)} = 2¹³

Multiplying exponents :

 3.2    5²  multiplied by  5¹²   = 5^{(2 + 12)} = 5¹⁴

Final result :

     321                                      
  ————————— = 6.42000 • 10-12 
  (213•514)