import { RoundingMode } from "./common.mjs";
export declare class Rational {
    readonly numerator: bigint;
    readonly denominator: bigint;
    readonly isNegative: boolean;
    constructor(p: bigint, q: bigint);
    toString(): string;
    static fromString(s: string): Rational;
    scale10(n: number): Rational;
    negate(): Rational;
    private static _add;
    private static _subtract;
    private static _multiply;
    static add(...theArgs: Rational[]): Rational;
    static subtract(x: Rational, ...theArgs: Rational[]): Rational;
    static multiply(...theArgs: Rational[]): Rational;
    toFixed(n: number): string;
    private static roundHalfEven;
    private static roundHalfExpand;
    private static roundCeil;
    private static roundFloor;
    round(numFractionalDigits: number, mode: RoundingMode): Rational;
    cmp(x: Rational): -1 | 0 | 1;
    isZero(): boolean;
}