No denominator can be equal to zero.
Work Step by Step
There will be no restrictions if none of the denominators of any of the fractions can ever be zero, for the variable is undefined for any value that makes a denominator zero.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.