A project, if team A works alone, it will take 8 days to complete, if team A and team B cooperate, the project can be completed in 6 days (5/6), if team B works alone, how many days will it take to complete.
一项工程，如果甲队单独做，需要8天完成，如果甲、乙两队合作，6天就能完成这项工程的(5/6)，如果乙队单独做，需要多少天完成．
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(5/6) / 6</gadget>
<output>5/36 = around 0.138889</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(5/36) - (1/8)</gadget>
<output>1/72 = around 0.013889</output>

<gadget id="calculator">1 / (1/72)</gadget>
<output>72</output>

<result>72</result>