Pam walks 7/8 of a mile to school. Paul walks 1/2 of a mile to school. How much farther does Pam walk than Paul?
Pam walks 3/8 of a mile further than Paul.
We can write a formula for this as:
Substituting the information from the problem gives:
In order to subtract or add fractions they need to be over a common denominator. For this problem the common denominator can be
We can now subtract these fractions: