To process a batch of parts, just complete (1/2) of the total number in 10 days, and complete ((())/(())) of the total number every day.
加工一批零件，10天正好完成总数的(1/2)，每天完成总数的((())/(()))．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) / 10</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>