title: Trouble outputting font property using less variables
body: <p>I'm using twitter bootstrap with less and I have the following:</p>
  
  <pre><code>@serifFontFamily: 'Droid Serif', "Georgia", Times, serif;
  @baseFontSize: 100%/1.5;
  
  font: @baseFontSize @serfiFontFamily;
  </code></pre>
  
  <p>it produces:</p>
  
  <pre><code>font: 66.666666667% 'Droid Serif', "Georgia", Times, serif
  </code></pre>
  
  <p>but I want to output this:</p>
  
  <pre><code>font: 100%/1.5 'Droid Serif', "Georgia", Times, serif
  </code></pre>
  
  <p>Any tips?</p>