Possible Loss of Fraction in C#

I had written some code in C# to try to account for possible fractions that looked something like this:

double columnCountDividedBy2 = numberOfColumns / 2;

In the above example, numberOfColumns is declared as an int. I thought that, because I was assigning the result to a double, I would get a fractional number if numberOfColumns divided by 2 was not a whole number. However, what was happening was that the fraction was being dropped. ReSharper was also giving me a warning message, "possible loss of fraction".

The reason why (which I have to smack myself now for not realizing) was that, even though I was assigning the result to a double, I was still dividing two integers. Adding a decimal point and zero to the second number of my equation, as shown below, solved the problem:

double columnCountDividedBy2 = numberOfColumns / 2.0;


I would like to ask you to recommend other sources dedicated to this theme in case you happen to know any of them.

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