how to calculate 100/30 ans is 10/3

Question

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Hello
please give me any solution
if i divide 100 by 30 then answer is 3.3333 but i want 10/3

Posted 10-Nov-14 1:04am

Dhiraj Bhole

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3 solutions

Solution 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:

C#

using System.Numerics;

And then, use this code:

C#

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
}

Posted 10-Nov-14 2:54am

Thomas Daniels

v2

Solution 2

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

C#

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

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

            return a;
        }

Then Your Result is

C#

<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

Posted 10-Nov-14 2:50am

rmksiva

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_Maxxx_ · Accepted Answer · 2014-11-10T01:14:00

Solution 1

What you need is a fractions class

Fortunately someone wrote one[^]

Posted 10-Nov-14 1:14am

_Maxxx_

Comments

Sergey Alexandrovich Kryukov 10-Nov-14 8:37am

5ed. Only the proper name for such object would be "rational number".
—SA

Maciej Los 10-Nov-14 10:15am

+5