It takes (1/6) hours to process one part, how many parts can be processed in (1/2) hours.
加工一个零件要(1/6)小时，(1/2)小时能加工多少个零件．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/2) / (1/6)</gadget>
<output>3</output>

<result>3</result>