title: Converting Float to a String in Ruby
body: <p>Sometimes when I try to print a Float in rails, I get an error like this:</p>
  
  <pre><code>TypeError at /delivery_requests/33/edit
  no implicit conversion of Float into String
  
  on the line: 
  = this_is_a_float
  </code></pre>
  
  <p>I know I can just add <code>.to_s</code> to the float, but why is this not done by default?</p>