Converting Fahrenheit to Celsius

   

using System;
using System.Data;
using System.Text.RegularExpressions;

class Class1{
        static void Main(string[] args){
            Console.WriteLine(FtoC(0));      
            Console.WriteLine(FtoC(40));      
            Console.WriteLine(FtoC(50));      
            Console.WriteLine(FtoC(-50));
        }
    public static double FtoC(double fahrenheit)
    {
      return ((0.5/0.9) * (fahrenheit - 32));
    }
}

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Converting Fahrenheit to Celsius : Number « Data Types « C# / C Sharp

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