Are improper fractions incorrect? No, they are really just another way of writing a mixed number.
For mathematics, improper fractions are actually easier to use than mixed fractions. But, for everyday use, people understand mixed numbers better. So, it is important that you know how to convert from one form to the other.
Write the mixed number as an improper fraction.
Write the improper fraction as a mixed number.
Divide the denominator into the numerator, and rewrite the fraction as a sum of the whole part plus the remainder.