#include <iostream>
using std::cout;
using std::cin;
using std::endl;

struct Rational
{
    int m_numerator;
    int m_denominator;

};

Rational sum(Rational n1, Rational n2)
{
    Rational result = { (n1.m_numerator * n2.m_denominator) + (n1.m_denominator * n2.m_numerator), n1.m_denominator * n2.m_denominator };
    return result;
}

int main()
{
    Rational num1 = {6, 12}, num2 = {5, 10};
    Rational result = sum(num1, num2);
    cout << "Sum is " << result.m_numerator << "/" << result.m_denominator << endl;
    system("pause");
    return 0;
}