A project can be completed in 8 days by A alone, and 6 days by B alone. Now after two days of cooperation between the two teams, B can complete the rest alone. How many days will it take?
一项工程，甲单独做8天完成，乙单独做6天完成，现在两队合作2天后，剩下的由乙单独完成，还需几天？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/8) + (1/6)</gadget>
<output>7/24 = around 0.291667</output>

<gadget id="calculator">(7/24) * 2</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">1 - (7/12)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(5/12) / (1/6)</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>