For a project, Team A will complete it in 40 days alone, and Team B will complete it in 60 days alone. After a few days of cooperation between Team A and Team B, Team A will transfer another task for a few days, and Team B will continue to work. Therefore, from the start of work to the completion of the task, the shared 27 days, how many days does Team A ask for leave?
一项工程，甲队单独做40天完成，乙队单独做60天完成，甲乙两队合做几天后，甲队另有任务调走几天，乙继续做，所以从开工到完成任务共用了27天，甲队请假多少天？
<gadget id="calculator">1 / 60</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">(1/60) * 27</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">1 - (9/20)</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">1 / 40</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">(11/20) / (1/40)</gadget>
<output>22</output>

<gadget id="calculator">27 - 22</gadget>
<output>5</output>

<result>5</result>