To build a section of road, if Team A can complete it in 10 days alone, Team B can complete it in 12 days alone. If the two teams work together, how many days can they finish?
修一段路，如果甲队单独修10天能完成，乙队单独修12天能完成．如果两队合修多少天能修完？
<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">1 / (11/60)</gadget>
<output>60/11 = around 5.454545</output>

<result>60/11 = around 5.454545</result>