Business Mathematics Brief 12th Edition by Stanley Salzman ,Gary Clendenen, Charles Miller

Exercise 108

In your own words, explain the steps you would take to add two large mixed numbers. (See Objective.)
Add mixed numbers. To add mixed numbers, first add the fractions. Then add the whole numbers and combine the two answers. For example, add
and
as shown.

Finally, write the sum of the fraction and whole-number parts as a mixed number.

So

To add mixed numbers, change the mixed numbers, if necessary, so that the fraction parts have a common denominator.