A project can be completed in 10 days by A alone, 12 days by B alone, and 5 days by the two teams, how much of the project can be completed.
一项工程，甲独做10天完成，乙独做12天完成，两队合做5天，可完成这项工程的多少．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

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

<gadget id="calculator">(1/10) + (1/12)</gadget>
<output>11/60 = around 0.183333</output>

<gadget id="calculator">(11/60) * 5</gadget>
<output>11/12 = around 0.916667</output>

<result>11/12 = around 0.916667</result>