Processing a batch of parts, if processed alone, the master can complete (1/6) of all parts in 2 hours, and the apprentice can complete (1/8) of all parts in 3 hours, now how many hours can the two work together?
加工一批零件，如果单独加工，师傅2小时可以完成全部零件的(1/6)，徒弟3小时可以完成全部零件的(1/8)，现两人合作，多少小时可以完成？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) / 2</gadget>
<output>1/12 = around 0.083333</output>

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

<gadget id="calculator">(1/8) / 3</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">(1/12) + (1/24)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / (1/8)</gadget>
<output>8</output>

<result>8</result>