A workshop actually produced 72 machines in April, of which the original planned production was 56 more than the overproduction. Find the overproduction in April than the original plan ((())/(())).
某车间四月份实际生产机器72台，其中原计划生产的台数比超产台数多56台，求四月份比原计划超产((())/(()))．
<gadget id="calculator">72 - 56</gadget>
<output>16</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 / 72</gadget>
<output>1/9 = around 0.111111</output>

<result>1/9 = around 0.111111</result>