Related Topics:

More Lessons for Grade 9 Math

Math Worksheets

Examples, solutions, videos, worksheets, and activities to help Algebra students learn about rational expressions.

** When is a rational expression undefined?**

A fraction with a denominator of zero is undefined.

Similarly, a rational expression with a denominator of zero is undefined.

To find the values that make a rational expression undefined, we set the denominator equal to zero and solve the resulting equation.

** When is a rational expression zero?**

A rational expression is zero when the numerator is zero.

To find the values that make a rational expression zero, we set the numerator equal to zero and solve the resulting equation.

Rational Expressions - When is it undefined?
For what values of x is the rational expression undefined?

Rational Expression- When is it zero?

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

More Lessons for Grade 9 Math

Math Worksheets

Examples, solutions, videos, worksheets, and activities to help Algebra students learn about rational expressions.

A fraction with a denominator of zero is undefined.

Similarly, a rational expression with a denominator of zero is undefined.

To find the values that make a rational expression undefined, we set the denominator equal to zero and solve the resulting equation.

A rational expression is zero when the numerator is zero.

To find the values that make a rational expression zero, we set the numerator equal to zero and solve the resulting equation.

Rational Expressions - When is it undefined?

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.