It takes 12 days for team A to build a road alone, and 18 days for team B to do it alone. Now Team A has been practicing alone for 2 days, and the remaining two teams have been practicing together. When the task is completed, how many days has Team A been cultivating?
修一条路，甲队独做要12天，乙队独做要18天．现在先由甲队独修了2天，余下的两队合修，完成任务时，甲队修了几天？
<gadget id="calculator">2 / 12</gadget>
<output>1/6 = around 0.166667</output>

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

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">1 / 18</gadget>
<output>1/18 = around 0.055556</output>

<gadget id="calculator">(1/12) + (1/18)</gadget>
<output>5/36 = around 0.138889</output>

<gadget id="calculator">(5/6) / (5/36)</gadget>
<output>6</output>

<gadget id="calculator">6 + 2</gadget>
<output>8</output>

<result>8</result>