SAT Math Advanced Math

Rational Expressions

Simplify rational expressions, find domain restrictions, and evaluate — with full SAT strategy tips on when x cannot equal a value.

Factor both polynomials
Domain restrictions found
Cancellation shown
Live
Rational Expression: N(x) / D(x)
Numerator: ax² + bx + c
Denominator: dx² + ex + f
Result
Simplified
Enter values and press Compute
Step-by-Step Simplification
Factored Form Visualization

Rational expressions tripping you up?

SAT tutoring covers factoring, domain restrictions, and simplification so you never lose points on these tricky algebra questions.

Book a Free Consultation →