Must be written in C++

Must have 2 cpp files (rationalnumber.cpp and main.cpp) and 1.h file labeled as (rationalnumber.h)

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Output should look like this 2(or some fraction equally 2 such as 54/27) 7/3 10/3

Assignment: Practicing operator overloading and friend functions:

Consider the RationalNumber class declaration below. You need to write four functions:

- A stand alone friend function that overloads the << operator and prints a rational number in the form numerator/denominator.

- A member function that overloads the subtraction operator (-) for the RationalNumber class. The member function subtracts two RationalNumber objects r1 and r2 and assigns the result to object r3.

- A standalone friend function that overloads the postfix increment operator (++) for the RationalNumber class. The friend function adds one to a RationalNumber object and allows cascaded function calls.

- A stand alone friend function that overloads the >> stream extraction operator and prompts the user for rational number (numerator and denominator)

class RationalNumber { // Make the standalone functions friends of the RationalNumber class private: int numerator; // private variable numerator int denominator; // private variable denominator public: RationalNumber( int = 0, int = 1 ); // default constructor // Include the prototype of the overloaded class method here };

You may use and complete the following main program to test your code. int main() { RationalNumber r1( 7, 3 ), r2( 3, 9 ), r3, r4; // Call the overloaded subtraction operator to subtract r2 from r1 // and store the result in r3 // Call the << overloaded operator to display the rational number r3, and then display r1 // Call the overloaded postfix increment to increment r1 and store it in r3

// Call the << overloaded operator to display the rational number r3 // Call the >> overloaded operator to enter attribute values for r4 // Call the << overloaded operator to display the rational number r4 return 0; }