project can be completed by the cooperation of A and B in 18 days. A alone to do 30 days to complete. Now A and B have worked together for 6 days, and then A will do it alone for 10 days. What percentage of the project is left?
一件工程，甲、乙两人合作18天可以完成．甲单独做要30天完成．现在由甲、乙两人合作6天后，再由甲独做10天，这件工程还剩几分之几？
<gadget id="calculator">1 / 18</gadget>
<output>1/18 = around 0.055556</output>

<gadget id="calculator">(1/18) * 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">(1/30) * 10</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) + (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>