Solution - Reducing fractions to their lowest terms

Step  1  :

            21
 Simplify   ——
            79

Equation at the end of step  1  :

       21
  1 -  ——
       79

Step  2  :

Rewriting the whole as an Equivalent Fraction :

 2.1   Subtracting a fraction from a whole

Rewrite the whole as a fraction using  79  as the denominator :

          1     1 • 79
     1 =  —  =  ——————
          1       79  

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:

 79 - (21)     58
 —————————  =  ——
    79         79

Final result :

  58           
  —— = 0.73418 
  79