There is a piece of land, in which (1/4) grows cabbage, (1/6) grows green vegetables, and the rest grows cucumbers. What percentage of the land is planted with cucumbers?
有一块地，其中(1/4)种白菜，(1/6)种青菜，其余的种黄瓜．种黄瓜的面积占这块地的几分之几？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/4) - (1/6)</gadget>
<output>7/12 = around 0.583333</output>

<result>7/12 = around 0.583333</result>