A project can be completed by A alone in 16 days, and by B alone in 12 days. Now A will do 2 days first, and A and B will do the rest together. How many days will it take to complete this project?
一项工程，甲单独做16天可以完成，乙单独做12天可以完成．现在由甲先做2天，剩下的由甲、乙一起做，这项工程一共需要多少天能完成？
<gadget id="calculator">1 / 16</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">(1/16) * 2</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>

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

<gadget id="calculator">(1/16) + (1/12)</gadget>
<output>7/48 = around 0.145833</output>

<gadget id="calculator">(7/8) / (7/48)</gadget>
<output>6</output>

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

<result>8</result>