A method for addition

• public void add(Rational r) {

• /* add r to this Rational */

• r_d = r.getDenom();

• r_n = r.getNum();

• num = num*r_d + denom*r_n;

• denom *= r_d;

• }

• __________________________________

• Rational r1 = new Rational(2,7)

• Rational r2 = new Rational(1,5)

• r1.add(r2);

Notes: