Adding / Subtracting Rational Expressions

Front

What is a rational expression?

Back

A rational expression is a fraction where the numerator and the denominator are both polynomials.

Front

How do you find a common denominator for adding rational expressions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators.

Front

What is the first step in adding rational expressions?

Back

The first step is to find a common denominator for the expressions being added.

Front

What is the formula for adding two rational expressions?

Back

Front

What is the importance of factoring in adding rational expressions?

Back

Factoring helps simplify the expressions and find the common denominator more easily.

Front

What does it mean to simplify a rational expression?

Back

Simplifying a rational expression means reducing it to its lowest terms by canceling common factors.

Front

What is the process for subtracting rational expressions?

Back

The process is similar to addition: find a common denominator, rewrite the expressions, and then subtract the numerators.

Front

What is the formula for subtracting two rational expressions?

Back

Front

What are restrictions in rational expressions?

Back

Restrictions are values that make the denominator zero, which are not allowed in the domain of the expression.

Front

Back