Solution - Reducing fractions to their lowest terms

Reformatting the input :

Changes made to your input should not affect the solution:

(1): ".3121" was replaced by "(3121/10000)".

Step  1  :

             3121
 Simplify   —————
            10000

Equation at the end of step  1  :

        3121     
  (l • —————) -  2
       10000     

Step  2  :

Rewriting the whole as an Equivalent Fraction :

 2.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  10000  as the denominator :

         2     2 • 10000
    2 =  —  =  —————————
         1       10000  

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:

 3121l - (2 • 10000)     3121l - 20000
 ———————————————————  =  —————————————
        10000                10000    

Final result :

  3121l - 20000
  —————————————
      10000