Solution - Adding, subtracting and finding the least common multiple

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "1.026123" was replaced by "(1026123/1000000)".

Step  1  :

            1026123
 Simplify   ———————
            1000000

Equation at the end of step  1  :

        1026123
  21 -  ———————
        1000000

Step  2  :

Rewriting the whole as an Equivalent Fraction :

 2.1   Subtracting a fraction from a whole

Rewrite the whole as a fraction using  1000000  as the denominator :

           21     21 • 1000000
     21 =  ——  =  ————————————
           1        1000000   

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

 2.2       Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

 21 • 1000000 - (1026123)     19973877
 ————————————————————————  =  ————————
         1000000              1000000 

Final result :

  19973877            
  ———————— = 19.97388 
  1000000