Two engineering teams, A and B, jointly repair a section of road. The ratio of the work efficiency of team A and team B is 3:5. The two teams jointly repaired (2/3) of this section of road in 6 days, and the rest is left by team B alone. Repair, how many days will it take to finish?
甲乙两个工程队合修一段公路，甲队与乙队的工作效率的比是3：5，两队合修6天正好修完这段公路的(2/3)，余下的由乙队单独修，还要几天才能修完？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">(1/9) / (8/5)</gadget>
<output>5/72 = around 0.069444</output>

<gadget id="calculator">(1/3) / (5/72)</gadget>
<output>24/5 = around 4.8</output>

<result>24/5 = around 4.8</result>