To process a batch of parts, A alone can complete (1/2) hour, and B alone can complete (1/3) hour, how many hours will the two cooperate to complete half of the task?
加工一批零件，甲单独做(1/2)小时完成，乙单独做(1/3)小时完成，两人合作几小时完成任务的一半？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">(1/2) / 5</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>