project can be completed in 12 days by the cooperation of teams A and B, 10 days by the cooperation of teams B and C, and 15 days by the cooperation of teams A and C. How many days can team C complete alone?
一项工程，甲乙两队合做12天可以完成，乙丙两队合做10天，甲丙两队合做15天完成，丙队单独做多少天可以完成？
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

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

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/12) + (1/10) + (1/15)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) / 2</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/8) - (1/12)</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">1 / (1/24)</gadget>
<output>24</output>

<result>24</result>