To build a road, team A needs 12 days to complete it alone, and team B needs 15 days to complete it alone. After team A repairs 8 days first, team B will complete the rest alone. How many days does team B need to complete the task?
修一条路，甲队独修需要12天完成，乙队独修需要15天完成，甲队先修8天后，剩下的由乙队单独完成，乙队需要几天完成任务？
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 8</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 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/3) / (1/15)</gadget>
<output>5</output>

<result>5</result>