How To Check a double value whether is Int or double

Question

Is That Any calculation or method allow me to check whether a double value is Int or Double in c# code

Example

Double NumberOne = 55.00 // Return False 
Double NumberTwo = 55.10 // Return True

Answer 1

Use Math.Floor

 if (Math.Floor(number) == number) {
     // yay, an "int"
 }

Answer 2

    private bool IsDoubleNotAnInt(double num)
    {
        if ((num % 1) == 0)
        {
            return false;
        }
        else
        {
            return true;
        }
    }