how to calculate 100/30 ans is 10/3

You are looking for the greatest common divisor of the numbers, and then divide the numbers by that GCD. There is a built-in method for this in the System.Numerics.BigInteger class (you'll need to add a reference to System.Numerics before you can use it). Add this on the top of your code file, after adding a reference to System.Numerics:

using System.Numerics;

And then, use this code:

string input = "100/30";
string[] numbers = input.Split('/');
int numerator;
int denominator;
if (numbers.Length == 2 && int.TryParse(numbers[0], out numerator) && int.TryParse(numbers[1], out denominator))
{
    BigInteger gcd = BigInteger.GreatestCommonDivisor(new BigInteger(numerator), new BigInteger(denominator));
    int gcdInt = (int)gcd;
    int newNumerator = numerator / gcdInt;
    int newDenominator = denominator / gcdInt;
    string result = String.Concat(newNumerator, "/", newDenominator);
}
else
{
    // invalid input
}

Hi,


You can reach your goal by Find "GCF (Greatest Common Factor)" for two numbers.


Divide both number by its GCF

Function for Find GCF

int GCF(int a, int b)
        {
            int Remainder;

            while (b != 0)
            {
                Remainder = a % b;
                a = b;
                b = Remainder;
            }

            return a;
        }

Then Your Result is

<pre>int a=100, b=30;

int gcf = GCF(a,b);

lblResult.Text = (a / gcf) + &quot;/&quot; + (b / gcf);

</pre>

Result : 10 / 3

Thanks

Siva Rm K