For a manuscript, Aunt Wang can finish recording (1/2) in 3 hours, and Aunt Li can finish recording (1/3) in 4 hours. Please cooperate with Aunt Wang and Aunt Li to finish recording in a few hours.
一份稿件，王阿姨3小时能录完(1/2)，李阿姨4小时能录完(1/3)，求王阿姨和李阿姨合作几小时可以录完．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) / 3</gadget>
<output>1/6 = around 0.166667</output>

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

<gadget id="calculator">(1/3) / 4</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/6) + (1/12)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / (1/4)</gadget>
<output>4</output>

<result>4</result>