title: Finding averages using two dictionaries
body: <p>I have two dictionaries that I wish to use:</p>
  <pre><code>dictionary1 = {'Reece': 2, 'Harry': 3, 'Jack': 3, 'Sam': 3, 'Dom': 3}
  dictionary2 = {'Reece': 1, 'Harry': 14, 'Jack': 8, 'Sam': 16, 'Dom': 5}
  </code></pre>
  <p>I wish to divide each value in dictionary2 by the value in dictionary1, and print this out.
  This would print something like:</p>
  <blockquote>
  <p>Reece:0.5</p>
  <p>Harry:4.66</p>
  </blockquote>
  <p>I'm currently trying to print and round these by using this code, which is erroring:</p>
  <pre><code>for b in dictionary2
              print('{}: {} '.format(b[0], round(b[1]/dictionary1[1], 2)))
  </code></pre>