As a starting point, use the files fraction.h, fraction.cpp, testfraction.cpp below:     // simple class for fractions #ifndef FRACTION_H_ #define FRACTION_H_ class Fraction {

As a starting point, use the files fraction.h, fraction.cpp, testfraction.cpp below:

// simple class for fractions

#ifndef FRACTION_H_
#define FRACTION_H_

class Fraction {

private:                        // internal implementation is hidden
    int num;                    // numerator
    int den;                    // denominator

    int gcd(int a, int b);        // calculates the gcd of a and b
    int lcm(int a, int b);

public:
    Fraction();                    // empty constructor
    Fraction(int, int = 1);     // constructor taking values for fractions and
                                // integers. Denominator by default is 1
    void print();                // prints it to the screen
};

#endif /* FRACTION_H_ */

#include <iostream>
#include "fraction.h"

Fraction::Fraction()
{
    num = 1;
    den = 1;
}

Fraction::Fraction(int n, int d)
{
    int tmp_gcd = gcd(n, d);

    num = n / tmp_gcd;
    den = d / tmp_gcd;
}

int Fraction::gcd(int a, int b)
{
    int tmp_gcd = 1;

    // Implement GCD of two numbers;

    return tmp_gcd;
}

int Fraction::lcm(int a, int b)
{
    return a * b / gcd(a, b);

}

void Fraction::print()
{
    std::cout << num << "/" << den << std::endl;
}

#include <iostream>
#include "fraction.h"

using namespace std;

int main(void)
{
    Fraction a(4, 2);
    Fraction b(17, 11);
    Fraction c(5);

    a.print(); 
    b.print(); 
    c.print(); 
}