The improper fraction 21/2 as a mixed number is 10 1/2
In order to convert 21/2 to a mixed number, we need to divide the numerator by the denominator to get a whole number and a remainder, and express the result as a whole number and a proper fraction.
To see it, we just need to put the whole number together with our remainder and original denominator:
So 21/2 as a mixed number is 10 1/2.