Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-7" was replaced by "^(-7)".

(2): ".35" was replaced by "(35/100)".

Step  1  :

             7
 Simplify   ——
            20

Equation at the end of step  1  :

            7
  (10-7) • ——
           20

Step  2  :

 2.1     10 = 2•5

(10)^-7 = (2•5)^(-7) = (2)^(-7) • (5)^(-7)

Equation at the end of step  2  :

                       7
  ((2)(-7)•(5)(-7)) • ——
                      20

Step  3  :

Multiplying exponents :

 3.1    2⁷  multiplied by  2²   = 2^{(7 + 2)} = 2⁹

Multiplying exponents :

 3.2    5⁷  multiplied by  5¹   = 5^{(7 + 1)} = 5⁸

Final result :

     7                                     
  ——————— = 3.50000 • 10-8 
  (29•58)