how to adding fraction with whole in C#..: 2 + 1 1/5 = ??

or

3 + 3/4 = ?? -----> it's just for example...:), it can be 3 + 2/3 or 4 + 6/7..

help please.. thank you a开发者_JAVA技巧ll.. :)

Sure, no problem. Download the Microsoft Solver Foundation and use the Rational type to do arithmetic on fractional numbers.

You can change each fraction to its equivalent decimal value. And then operate them.

Remember whole fractions can be used as:

1 1/4         => 1 + 1/4
2 1/5 + 2 2/3 => 2 + 1/5 + 2 + 2/3      

Now, remember for data-type.

int i = 1/4;       // it will give 0 since i is int
decimal i = 1/4m   // ok, it will give  0.25;

Example:

decimal i = 2 + 1/5m + 2 + 2/3m;  //it will ok for  2 1/5 + 2 2/3

UPDATE

C# Code

decimal Fraction(string f)
    {
        var numbers = f.Split(' ', '+');
        decimal temp, result = 0.0m;
        decimal numerator, denominator;
        foreach (var str in numbers)
        {
            if (decimal.TryParse(str, out temp))
            {
                result += temp;
            }
            else if (str.Contains("/"))
            {
                var frac = str.Split('/');
                decimal.TryParse(frac[0], out numerator);
                decimal.TryParse(frac[1], out denominator);

                result += numerator / denominator;
            }
        }
        return result;
    }

Usage:

decimal d = Fraction("2 2/3 + 5/7 + 1 1/4");     //4.630952380952380952380952381

// put a space between whole and fraction value   => 1 1/2
// put a + sign to add numbers between them       => 1 2/3 + 2/3

[NOTE: this program is only for addition not for subtraction]

Wouldn't that be "2 + 6/5" or "16/5"? Correct me if I'm wrong but there is no fractions in c#. There is some open source projects for that though.