Даны две дроби A/B и C/D (A, B, C, D – натуральные числа) Составить функцию деления этих дробей

#include <iostream>
 
using namespace std;
 
void divideFractions(int a, int b, int c, int d) {
    int numerator = a * d;
    int denominator = b * c;
    cout << "Result: " << numerator << "/" << denominator << endl;
}
 
int main() {
    int a, b, c, d;
    cout << "Enter the first fraction: ";
    cin >> a >> b;
    cout << "Enter the second fraction: ";
    cin >> c >> d;
    divideFractions(a, b, c, d);
    return 0;
}

#include <iostream>
 
struct fraction
{
    fraction(std::size_t _n, std::size_t _d): numerator(_n), denominator(_d){}
    fraction operator/(const fraction& rFraction)
    {
        return fraction(numerator*rFraction.denominator, denominator*rFraction.numerator);
    }
    friend std::ostream& operator<<(std::ostream &os, const fraction& fraction)
    {
        os << fraction.numerator << "/" << fraction.denominator;
        return os;
    }
 
private:
    std::size_t numerator, denominator;
};
 
int main()
{
    fraction fr1{1, 2}, fr2{5, 7};
 
    std::cout << fr1/fr2;
 
    return 0;
}

#include <iostream>
#include <numeric> // C++17
 
void divide(int a, int b, int c, int d)
{
    int num = a * d;
    int denom = b * c;
    int g = std::gcd(num, denom);
    num /= g;
    denom /= g;
    std::cout << "numerator = " << num << "\ndenominator = " << denom;
}
 
 
int main()
{
    int a, b, c, d;
    std::cout << "a = "; std::cin >> a;
    std::cout << "b = "; std::cin >> b;
    std::cout << "c = "; std::cin >> c;
    std::cout << "d= "; std::cin >> d;
    divide(a, b, c, d);
}

#include <iostream>
#include <ratio>
 
int main()
{
    using ab = std::ratio<1, 2>;
    using cd = std::ratio<4, 5>;
    using quotient = std::ratio_divide<ab, cd>;
    std::cout << "numerator = " << quotient::num << "\ndenominator = " << quotient::den;
}