JAVA:

Suppose we want to implement a rational number class called Rational.

Each object of Rational represents a rational number with an integer numerator and a nonzero integer denominator.

The instance variables of Rational corresponding to the numerator and denominator are int n and int d.

Implement the following instance method of Rational:

public Rational add(Rational other)

The result should be a new Rational object constructed by adding this to other.

The Rational constructor takes two parameters to initialize n and d respectively.

The constructor will reduce numerator and denominator to lowest terms. Your add method doesn't need to do that.