How do you change a mixed number into an improper fraction?

Answer 1

First change the whole number part of the mixed number into an improper fraction with the same denominator as the fraction part. You do this by multiplying the whole number by the fraction's denominator.

Example: 3 is equal to 9/3 or 12/4

Then add the numerator of the fraction to the numerator of the improper fraction, since they have the same denominators now.

Examples:

3 1/4 = (12/4 + 1/4) = 13/4

5 1/2 = (10/2 + 1/2) = 11/2

Multiply the denominator by the whole number, add the numerator, and put the total over the denominator.

Answer 2

A mixed number of the form X Y/Z is equal to (X*Z+Y)/Z