### Home > CCA2 > Chapter Ch4 > Lesson 4.2.1 > Problem 4-69

4-69.

Add, subtract, multiply, or divide the following rational expressions. Then simplify your expression, if possible.

See problems 3-103 and 3-113.

In parts (a) and (b) you are adding and subtracting fractions. Therefore you will need a common denominator.

Factor each expression.

Then remove factors that create Giant Ones.