Every mixed number is (a whole number) + (a piece of another one). So every mixed number must be bigger than ' 1 ', because ' 1 ' is the smallest whole number.
77/200 is less than ' 1 ', because the numerator is less than the denominator. So it doesn't have what it takes to be a whole number.
Every fraction is a short way to write a division problem. It means
(the top number) divided by (the bottom number).
When you actually do the division, the answer is the decimal form of the fraction.