Add, subtract, multiply or divide two rational expressions (fractions of polynomials).
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.
Addition
a/b + c/d = (a·d + c·b) / (b·d)
Multiplication
a/b × c/d = (a·c) / (b·d)
The calculator performs the arithmetic correctly but does not always fully simplify the result by cancelling common polynomial factors.
Enter it as a single number coefficient, e.g. '5' for the polynomial 5, or '1,0,0' for x².