Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-31" was replaced by "^(-31)".

(2): "1.05" was replaced by "(105/100)".

Step  1  :

            21
 Simplify   ——
            20

Equation at the end of step  1  :

        21
  0 -  (——)-31)
        20

Step  2  :

 2.1     21 = 3•7

(21)^-31 = (3•7)^(-31) = (3)^(-31) • (7)^(-31)  2.2     20 = 2²•5 (20)^-31 = (2²•5)^(-31) = (2)^(-62) • (5)^(-31)

Equation at the end of step  2  :

       ((3)(-31)•(7)(-31))
  0 -  ———————————————————
       ((2)(-62)•(5)(-31))

Step  3  :

Final result :

  -1 • (262•531)
  ——————————————
  1 • (331•731)