Operations with Rational Expressions

Front

What is the first step when adding and subtracting rational expressions?

Back

Determine a Least Common Denominator.

Tags

CCSS.HSA.APR.D.7

Front

What should you do when dividing rational expressions?

Back

Change the operator to multiplication and reciprocate the second fraction.

Tags

CCSS.HSA.APR.D.6

Front

When adding and subtracting rational expressions, should you combine like terms in the denominator?

Back

Never.

Tags

CCSS.HSA.APR.D.7

Front

What is a rational expression?

Back

A fraction where the numerator and the denominator are polynomials.

Tags

CCSS.HSA.APR.D.7

Front

What is the Least Common Denominator (LCD)?

Back

The smallest expression that can be a common denominator for two or more rational expressions.

Tags

CCSS.HSA.APR.D.6

Front

How do you find the LCD of two rational expressions?

Back

Factor the denominators and take the highest power of each factor.

Tags

CCSS.HSA.APR.D.7

Front

What is the result of multiplying two rational expressions?

Back

Multiply the numerators together and the denominators together.

Tags

CCSS.HSA.APR.D.7

Front

What is the first step in simplifying a complex rational expression?

Back

Simplify the numerator and denominator separately.

Tags

CCSS.HSA.APR.D.6

Front

What does it mean to 'factor' a polynomial?

Back

To express it as a product of its factors.

Front

What is the process of adding rational expressions?

Back

Find a common denominator, rewrite each expression, and then combine the numerators.

Tags

CCSS.HSA.APR.D.7