(rational class) create a class called rational for performing arithmetic with fractions (make sure to separate interface from implementation). use integer variables to represent the private data of the class the numerator and the denominator. provide public member functions that perform each of the following tasks: a) create a constructor that prevents a 0 denominator in a fraction and avoids negative denominators. b) overload the addition, subtraction, multiplication and division operators for this class. c) overload the equality (