project can be completed by team A alone in 18 days and by team B in 24 days alone. If the two teams cooperate for 8 days, and the rest of the project is done by Team A alone, how many days will it take to complete?
一项工程，甲队单独做18天可以完成，乙队单独做24天可以完成．如果两队合作8天后，剩下的工程由甲队单独做，还要做几天才能完成？
<gadget id="calculator">1 / 18</gadget>
<output>1/18 = around 0.055556</output>

<gadget id="calculator">1 / 24</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">(1/18) + (1/24)</gadget>
<output>7/72 = around 0.097222</output>

<gadget id="calculator">(7/72) * 8</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">1 - (7/9)</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(2/9) / (1/18)</gadget>
<output>4</output>

<result>4</result>