DoubleExtentions

using System;
using System.Threading;

namespace ConsoleApp.ExtMethods
{
    public static class DoubleExtentions
    {
        public static int IntPart(this double value)
        {
            return (int)Math.Truncate(value);
        }

        public static int FractPart(this double value)
        {
            var str = value.ToString();
            int sepIndex = str.LastIndexOf(Thread.CurrentThread.CurrentCulture.NumberFormat.CurrencyDecimalSeparator);
            return (sepIndex != -1) ? int.Parse(str.Substring(sepIndex + 1)) : 0;
        }
    }
}