Method add

src/main/java/org/apache/commons/lang3/math/Fraction.java:505–507

Adds the value of this fraction to another, returning the result in reduced form. The algorithm follows Knuth, 4.5.1. @param fraction the fraction to add, must not be null @return a Fraction instance with the resulting values @throws NullPointerException if the fraction is {@code n

(final Fraction fraction)

     *  {@code Integer.MAX_VALUE}
     */
    public Fraction add(final Fraction fraction) {
        return addSub(fraction, true /* add */);
    }

    /**
     * Implements add and subtract using the algorithm described in <a href="https://www-cs-faculty.stanford.edu/~knuth/taocp.html">