If 6 parts are processed in (2/3) hour, how many parts are processed in 1 hour?
(2/3)小时加工6个零件，则1小时加工多少个零件．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">6 / (2/3)</gadget>
<output>9</output>

<result>9</result>