Rational Expression Simplifier

Combine and reduce rational expressions by cancelling the polynomial GCD, and list the values excluded from the domain.

Your result will appear here

Fill in the fields and press Simplify, or pick one of the examples.

About the Rational Expression Simplifier

Combines sums, differences, products and quotients of algebraic fractions into a single fraction and cancels the greatest common polynomial factor of the numerator and denominator.

The values of the variable that make the original expression undefined are listed, because the simplified form is only equal to the original away from them.

Limitations

One variable with rational coefficients. For several variables use the Expression Simplifier.

How to use it

Enter a rational expression in one variable.
Press Simplify.
Check the excluded values in the warning below the result.

Example

(x^2 - 1)/(x - 1)

→ x + 1 (x ≠ 1)

Expression SimplifierSimplify algebraic expressions by combining like terms and applying algebraic identities; results are verified numerically.Polynomial CalculatorAdd, subtract, multiply and divide polynomials with exact long division, quotient, remainder and greatest common divisor.Fraction CalculatorAdd, subtract, multiply, divide and simplify fractions and mixed numbers exactly, with step-by-step working, GCD and LCM.

About the Rational Expression Simplifier

Limitations

How to use it

Related tools

About the Rational Expression Simplifier

Limitations

How to use it