Multiplication and division of rational expressions

Front

Define rational expressions.

Back

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

Front

What is the process for dividing rational expressions?

Back

To divide rational expressions, multiply the first expression by the reciprocal of the second expression.

Tags

CCSS.HSA.APR.D.6

Front

What is the product of two rational expressions?

Back

The product of two rational expressions is found by multiplying the numerators together and the denominators together.

Tags

CCSS.HSA.APR.D.7

Front

Back

Tags

CCSS.HSA.APR.D.7

Front

What is the first step in simplifying a rational expression before multiplying?

Back

Factor both the numerator and the denominator completely.

Tags

CCSS.HSA.APR.D.7

Front

Back

Tags

CCSS.HSA.APR.D.7

Front

How do you find the least common denominator (LCD) of two rational expressions?

Back

The LCD is the least common multiple of the denominators of the rational expressions.

Tags

CCSS.HSA.APR.D.7

Front

Back

Tags

CCSS.HSA.APR.D.6

Front

What does it mean to 'cancel' in rational expressions?

Back

To 'cancel' means to reduce common factors in the numerator and denominator.

Tags

CCSS.HSA.APR.D.6

Front

Back

Tags

CCSS.HSA.APR.D.6