Solution - Reducing fractions to their lowest terms

Step  1  :

             81
 Simplify   ———
            256

Equation at the end of step  1  :

        81
  1 -  ———
       256

Step  2  :

Rewriting the whole as an Equivalent Fraction :

 2.1   Subtracting a fraction from a whole

Rewrite the whole as a fraction using  256  as the denominator :

          1     1 • 256
     1 =  —  =  ———————
          1       256  

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:

 256 - (81)     175
 ——————————  =  ———
    256         256

Final result :

  175           
  ——— = 0.68359 
  256