title: doing math in two different file in linux
body: <p>I have two data file each of them has 3 columns. How can I divided the corresponding elements in third columns in these two files and write it in another file in linux or awk.</p>
  
  <pre><code>Experiment Replica Mean
  General0 0 408.5
  General0 1 461.162
  General0 2 428.23
  General0 3 373.771
  General0 4 396.243
  
  Experiment Replica Mean
  General0 0 124.674
  General0 1 142.017
  General0 2 145.206
  General0 3 118.493
  General0 4 126.985
  
  Experiment Replica Mean
  General0 0 124.674 / 408.5
  General0 1 
  General0 2 
  General0 3 
  General0 4 
  </code></pre>