Math expression that doesn't work with a parenthesis
<p>I'm tryng to convert a Fahrenheit temperature in correspective Celsius so I wrote:</p>

<pre><code>double f = 90.0;
double c = (90.0-32)*(5/9); // 0.0
</code></pre>

<p>But this don't works, better fortune if I don't use the second set of parenthesis:</p>

<pre><code>double c = (90.0-32)*5/9; // 32.2222
</code></pre>

<p>Why this (at least for me) strange behavior?</p>
