A project can be completed by team A alone in 20 days and team B alone in 30 days. Now the two teams are working together, during which team A rested for 6 days and team B rested for 8 days. (The two teams do not rest at the same time), how many days will it take from the beginning to the completion?
一件工程，甲队单独做20天完成，乙队单独做30天完成．现在两队合做，期间甲队休息了6天，乙队休息了8天．(两队不同时休息)，开始到完工共用多少天？
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/20) * 6</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">(1/30) * 8</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">(3/10) + (4/15) + 1</gadget>
<output>47/30 = around 1.566667</output>

<gadget id="calculator">(1/20) + (1/30)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(47/30) / (1/12)</gadget>
<output>94/5 = around 18.8</output>

<result>94/5 = around 18.8</result>