Realize than any number n that "isn't" a fraction is equal to n/1
In this case:
8.21/1 now we want the numerator to be a whole number so we can multiply both the numerator and denominator by the same amount with changing its value
(8.21)100/100
821/100 now this is an improper fraction so we should change it to a mixed number...
(800+21)/100
8+21/100
8 21/100
