title: Typesetting LaTeX fraction terms to be larger in an equation
body: <p>I have the following formula in LaTeX, based on <a href="https://en.wikipedia.org/wiki/Fisher%27s_exact_test" rel="nofollow noreferrer">Fisher's Exact Test</a>. (<strong>NOTE</strong>: requires the use of the <code>amsmath</code> package for <code>\binom</code>.)</p>
  <pre><code>\begin{equation}
      P(i,j) = \sum_{x=|N(V_i) \cap V_j|}^{\min\{|V_j|, |N(V_i)|}
      \frac{ \binom{|V_j|}{x} \binom{|V - V_j|}{|N(V_i)| - x}}
      {\binom{|V|}{|N(V_i)|}}
  \end{equation}
  </code></pre>
  <p>This renders the fraction portion with very small, difficult to read text:</p>
  <p><img src="https://lh3.ggpht.com/_5SL_dsq8Oas/S8oenMRQmOI/AAAAAAAAA7U/8QER-HJk-Fg/s288/small_text_frac.png" alt="equation with small text in fraction" /></p>
  <p>I would like my text more readable, as in the following example:</p>
  <p><a href="https://i.stack.imgur.com/YWpzM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YWpzM.png" alt="equation with readable text in fraction" /></a><br />
  <sub>(source: <a href="http://www.plosone.org/article/fetchObject.action?uri=info:doi/10.1371/journal.pone.0005313.e002&amp;representation=PNG" rel="nofollow noreferrer">plosone.org</a>)</sub></p>
  <p>What trickery can I use to get LaTeX to render my equation similarly?</p>