In a vegetable field (2/3) hectares, (1/3) of it is planted with celery, (1/4) is planted with spinach, and the rest is planted with potatoes. What percentage of the area is planted with potatoes?
一块菜地(2/3)公顷，它的(1/3)种芹菜，它的(1/4)种菠菜，其余的种土豆，种土豆的面积占这块地的几分之几？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<result>5/12 = around 0.416667</result>