It takes 40 days for team A to complete a project alone, and 10 days for team B to complete it alone. If team A works alone for 5 days and then the two teams cooperate, how many days will it take to complete?
一项工程，甲队单独工作需要40天完成，乙队单独工作需要10天完成，如果甲队先独做5天后，再由两队合作，还需要几天完成？
<gadget id="calculator">1 / 40</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">(1/40) * 5</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>

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

<gadget id="calculator">(1/40) + (1/10)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(7/8) / (1/8)</gadget>
<output>7</output>

<result>7</result>