/ Operator (C# Reference)
The division operator (/) divides its first operand by its second. All numeric types have predefined division operators.
Remarks
User-defined types can overload the / operator (see operator). An overload of the / operator implicitly overloads the /= operator.
When you divide two integers, the result is always an integer. For example, the result of 5 / 2 is 2. To determine the remainder of 5 / 2, use the modulo operator (%). To obtain a quotient as a rational number or fraction, give the dividend or divisor type float or type double. You can do this implicitly by putting a decimal point after the number, as shown in the following example.
Example
class Division
{
static void Main()
{
Console.WriteLine(5 / 2);
Console.WriteLine(5 % 2);
Console.WriteLine(5 / 2.1);
Console.WriteLine(5.1 / 2);
Console.WriteLine(-5 / 2);
}
}
/*
Output:
2
1
2.38095238095238
2.55
-2
*/