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Calcrivo

Rational Expression Simplifier

Add, subtract, multiply or divide two rational expressions (fractions of polynomials).

Inputs

Coefficients highest to lowest, e.g. '1,2' for x+2

e.g. '1,-1' for x−1

Result Numerator

2x^2 - 3x + 1

Result Denominator

1x^2 - 2x + 1

Step by step

  1. Values used

    Numerator 1 coefficients = 1,2; Denominator 1 coefficients = 1,-1; Operation = Add (+); Numerator 2 coefficients = 1,-3; Denominator 2 coefficients = 1,-1

  2. Addition

    a/b + c/d = (a·d + c·b) / (b·d)

  3. Multiplication

    a/b × c/d = (a·c) / (b·d)

  4. Result Numerator

    = 2x^2 - 3x + 1

  5. Result Denominator

    = 1x^2 - 2x + 1

How it works

Rational expressions are fractions whose numerator and denominator are polynomials. To add/subtract, find a common denominator (multiply the denominators). To multiply, multiply numerators and denominators. To divide, multiply by the reciprocal of the second fraction.

Formulas

Addition

a/b + c/d = (a·d + c·b) / (b·d)

a
Numerator 1
b
Denominator 1
c
Numerator 2
d
Denominator 2

Multiplication

a/b × c/d = (a·c) / (b·d)

a
Numerator 1
b
Denominator 1
c
Numerator 2
d
Denominator 2

Frequently Asked Questions

Does this cancel common factors?

The calculator performs the arithmetic correctly but does not always fully simplify the result by cancelling common polynomial factors.

How do I enter a constant?

Enter it as a single number coefficient, e.g. '5' for the polynomial 5, or '1,0,0' for x².

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