Калькулятор для дробей

#include <iostream>
 
class Fraction
{
public:
    Fraction()
    {
        numerator = 1;
        denominator = 1;
    }
    Fraction(int64_t num, int64_t den)
    {
        numerator = num;
        denominator = den;
    }
    Fraction Sum(Fraction otherFraction)
    {
        int n = numerator * otherFraction.denominator + otherFraction.numerator * denominator;
        int d = denominator * otherFraction.denominator;
        return Fraction(n / gcd(n, d), d / gcd(n, d));
    }
    Fraction Difference(Fraction otherFraction)
    {
        int n = numerator * otherFraction.denominator - otherFraction.numerator * denominator;
        int d = denominator * otherFraction.denominator;
        return Fraction(n / gcd(n, d), d / gcd(n, d));
    }
    Fraction Product(Fraction otherFraction)
    {
        int n = numerator * otherFraction.numerator;
        int d = denominator * otherFraction.denominator;
        return Fraction(n / gcd(n, d), d / gcd(n, d));
    }
    Fraction Division(Fraction otherFraction)
    {
        int n = numerator * otherFraction.denominator;
        int d = denominator * otherFraction.numerator;
        return Fraction(n / gcd(n, d), d / gcd(n, d));
    }
    int gcd(int n, int d)
    {
        int remainder;
        while (d != 0)
        {
            remainder = n % d;
            n = d;
            d = remainder;
        }
        return n;
    }
private:
    int64_t numerator, denominator;
};

#include <iostream>
using namespace std;
class Fraction
{
private:
    int numerator;
    int denominator;
public:
    Fraction()
    {
        numerator = 0;
        denominator = 0;
    }
    Fraction(int numerator_, int denominator_)
    {
        numerator = numerator_;
        denominator = denominator_;
    }
    void Print()
    {
        cout << " " << numerator << endl;
        cout << "------" << endl;
        cout << " " << denominator << endl;
    }
    Fraction Add(Fraction& f)
    {
        f.numerator = (this->numerator * f.denominator) + (f.numerator * this->denominator);
        f.denominator *= this->denominator;
        return f;
    }
    Fraction Sub(Fraction& f)
    {
        numerator = (this->numerator * f.denominator) - (f.numerator * this->denominator);
        f.denominator = f.denominator * this->denominator;
        return f;
    }
    Fraction Mult(Fraction& f)
    {
        f.numerator = this->numerator * f.numerator;
        f.denominator = this->denominator * f.denominator;
        return f;
    }
    Fraction Div(Fraction& f)
    {
        int temp = f.numerator;
        f.numerator = this->numerator * f.denominator;
        f.denominator = this->denominator * temp;
        return f;
    }
};