A project, team A alone takes 6 hours, and team B alone takes 4 hours. After team A completes (1/3), the two teams cooperate. When the project is completed, how many hours will team A work in total?
一项工程，甲队单独做要6小时，乙队单独做要4小时，甲队做完(1/3)后两队合作，到这项工程完成时，甲队共做多少小时？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

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

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/6) + (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(2/3) / (5/12)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">2 + (8/5)</gadget>
<output>18/5 = around 3.6</output>

<result>18/5 = around 3.6</result>