Update Equals_25051.cs (#5038)

the result type of int type devided by int type is int, not double.

Author: snowei

samples/snippets/csharp/VS_Snippets_CLR_System/system.Double.Epsilon/cs/Equals_25051.cs

@@ -18,7 +18,7 @@ private static void CompareUsingEquals()
  // <Snippet1>
  // Initialize two doubles with apparently identical values
  double double1 = .33333;
- double double2 = 1/3;
+ double double2 = (double) 1/3;
  // Compare them for equality
  Console.WriteLine(double1.Equals(double2)); // displays false
  // </Snippet1>
@@ -48,7 +48,7 @@ private static void CompareObjectsUsingEquals()
  // <Snippet3>
  // Initialize two doubles with apparently identical values
  double double1 = .33333;
- object double2 = 1/3;
+ object double2 = (double) 1/3;
  // Compare them for equality
  Console.WriteLine(double1.Equals(double2)); // displays false
  // </Snippet3>