This award-winning series helps students to build confidence in their ability to "do math" and develop the knowledge and skills required to become mathematically literate. This lesson shows that subtraction of fractions is related to the subtraction of whole numbers. The borrowing process is introduced with a story that gives a concrete picture of what one is doing when borrowing in a fractional subtraction exercise. A logical, step-by-step process is developed to subtract mixed numbers. Special cases involving a mixed number minus a whole number and a whole number minus a mixed number are investigated. Students will learn to subtract fractions, to subtract mixed numbers and to borrow when needed for the subtraction of mixed numbers and much more.