To make a batch of parts, the master alone will complete it in 6 days, and the apprentice will complete it in 10 days. After the master does it alone for 5 days, the apprentice will do the rest of the work. How many days will it take to complete?
做一批零件，师傅单独做6天完成，徒弟独做10天完成，师傅单独做5天后，余下的工程由徒弟做，还要几天完成？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) * 5</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/6) / (1/10)</gadget>
<output>5/3 = around 1.666667</output>

<result>5/3 = around 1.666667</result>