Solution - Reducing fractions to their lowest terms

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "12.57" was replaced by "(1257/100)".

Step  1  :

            1257
 Simplify   ————
            100 

Equation at the end of step  1  :

        1257
  77 -  ————
        100 

Step  2  :

Rewriting the whole as an Equivalent Fraction :

 2.1   Subtracting a fraction from a whole

Rewrite the whole as a fraction using  100  as the denominator :

           77     77 • 100
     77 =  ——  =  ————————
           1        100   

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:

 77 • 100 - (1257)     6443
 —————————————————  =  ————
        100            100 

Final result :

  6443            
  ———— = 64.43000 
  100