A project can be completed in 8 days alone, and B can complete it every day (1/6) alone. How many days will the two teams work together to complete the project?
一项工程甲单独做8天完成，乙单独做每天完成(1/6)，两队合做多少天完成这项工程．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

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

<gadget id="calculator">(1/8) + (1/6)</gadget>
<output>7/24 = around 0.291667</output>

<gadget id="calculator">1 / (7/24)</gadget>
<output>24/7 = around 3.428571</output>

<result>24/7 = around 3.428571</result>