The document provides step-by-step instructions for adding mixed numbers. It begins with a review of key terms like denominator, unlike denominators, and mixed number. It then outlines a 4-step process for adding mixed numbers: 1) Find the least common denominator to make the fractions like, 2) Add the fractions, 3) Add the whole numbers, 4) Simplify the resulting fraction if possible. This is demonstrated through worked examples adding various mixed numbers like 1 3/7 + 3 1/2 and 2 3/5 + 4 6/7.