How to output fraction instead of decimal number?

Question

In C++, When I calculate 2/3, it will output decimal values, how can I just get the original format (i.e.g 2/3) instead of 0.66666667

Thanks

Answer 1

This is a program to convert a decimal number into a fraction

#include
using namespace std;

int main()
{

    float num, origNum, rem = 1;
    int den = 1, i, count=0, gcd=1;

    cout << "Enter any float number to convert it into mixed fraction: ";
    cin >> origNum;

    num = origNum - static_cast(origNum);

    if (num > 0.1)
    {
        while ( (rem > 0.1) )
        {
            num = num * 10;
            rem = num - static_cast(num);
            count++;
        }

        for (i = 1; i <= count; i++) // counter is for the calculation of denominator part of mixed fraction 
        {
            den = den * 10;
        }

        for (i = 2; i <= num|| i<=rem; i++)
        {
            if( (static_cast(num) % i == 0) && (den % i == 0) )
            {
                gcd = i;
            }   
        }

        cout << (static_cast(origNum)) << " and " << (static_cast(num))/gcd << "/" << den/gcd;
    }
    else
        cout << (static_cast(origNum));

    return 0;   
}