2_2 c++

#include <iostream>
using namespace std;
float getException(int number) {
    bool isIncorrect;
    number = 0;
    do{
        cin >> number;
        isIncorrect = false;
        if (cin.fail()){
            cin.clear();
            cin.ignore(1000, '\n');
            cout << "Введите натуральное число!\n";
            isIncorrect = true;
        }
    }while (isIncorrect);
    return number;
}
float getFirstFraction() {
    bool isIncorrect;
    int numerator = 0;
    int denominator = 0;
    do {
        isIncorrect = false;
        cout << "Введите числитель первой дроби\n";
        numerator = getException(numerator);
        int numeratorForFindingDivisors = numerator;
        cout << "Введите знаменатель первой дроби\n";
        denominator = getException(denominator);
        int denominatorForFindingDivisors = denominator;
        if (denominator == 0) {
            cout << "Введите знаменатель, не равный 0!\n";
            isIncorrect = true;
        }
        else if (numerator == 0) {
            cout << "Введите числитель, не равный 0!\n";
            isIncorrect = true;
        }
        else while (denominatorForFindingDivisors != 0) {
            if (numeratorForFindingDivisors > denominatorForFindingDivisors)
                numeratorForFindingDivisors = numeratorForFindingDivisors - denominatorForFindingDivisors;
            else
                denominatorForFindingDivisors = denominatorForFindingDivisors - numeratorForFindingDivisors;
        }
        if (numeratorForFindingDivisors > 1) {
            cout << "Дробь должна быть несократимой! Попробуйте ещё.\n";
            isIncorrect = true;
        }
    } while (isIncorrect);
    float fraction = (float)numerator / (float)denominator;
    return fraction;
}
float getSecondFraction() {
    bool isIncorrect;
    int numerator = 0;
    int denominator = 0;
    do {
        isIncorrect = false;
        cout << "Введите числитель второй дроби\n";
        numerator = getException(numerator);
        int numeratorForFindingDivisors = numerator;
        cout << "Введите знаменатель второй дроби\n";
        denominator = getException(denominator);
        int denominatorForFindingDivisors = denominator;
        if (denominator == 0) {
            cout << "Введите знаменатель, не равный 0!\n";
            isIncorrect = true;
        }
        else if (numerator == 0) {
            cout << "Введите числитель, не равный 0!\n";
            isIncorrect = true;
        }
        else while (denominatorForFindingDivisors != 0) {
            if (numeratorForFindingDivisors > denominatorForFindingDivisors)
                numeratorForFindingDivisors = numeratorForFindingDivisors - denominatorForFindingDivisors;
            else
                denominatorForFindingDivisors = denominatorForFindingDivisors - numeratorForFindingDivisors;
        }
        if (numeratorForFindingDivisors > 1) {
            cout << "Дробь должна быть несократимой! Попробуйте ещё.\n";
            isIncorrect = true;
        }
    } while (isIncorrect);
    float fraction = (float)numerator / (float)denominator;
    return fraction;
}
float getSumOfFractions(float firstFraction, float secondFraction) {
    float sum = firstFraction + secondFraction;
    return sum;
}
void outputSum(float sum) {
    cout << "Сумма дробей: " << sum;
}
int main(){
    system("chcp 1251");
    system("cls");
    cout << "Программа считает сумму двух обыкновенных несократимых дробей\n";
    float firstFraction = getFirstFraction();
    float secondFraction = getSecondFraction();
    float sum = getSumOfFractions(firstFraction, secondFraction);
    outputSum(sum);
}