A job is done alone, A needs 6 days to complete, B needs 8 days to complete, how many days will the two cooperate to complete half of this job?
一件工作，单独做，甲要6天完成，乙要8天完成，现两人合作几天级完成这件工作的一半？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

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

<gadget id="calculator">(1/2) / (7/24)</gadget>
<output>12/7 = around 1.714286</output>

<result>12/7 = around 1.714286</result>