A project can be completed in 8 days by A alone, 10 days by B alone, 2 days later by team B alone, and then A and B will work together. How many days will it take to complete this project?
一项工程甲独做8天完成，乙独做10天完成，乙队独做2天后，再由甲乙合做，完成这项工程共用几天？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/8) * 2</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/8) + (1/10)</gadget>
<output>9/40 = around 0.225</output>

<gadget id="calculator">(3/4) / (9/40)</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">(10/3) + 2</gadget>
<output>16/3 = around 5.333333</output>

<result>16/3 = around 5.333333</result>