A piece of land (2/3) hectares, of which (1/5) is planted with tomatoes, (1/3) is planted with cucumbers, and the rest is planted with vegetables. What percentage of the area is planted with vegetables?
一块地(2/3)公顷，其中(1/5)种西红柿，(1/3)种黄瓜，剩下的种青菜，种青菜的面积占这块地的几分之几？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/5) - (1/3)</gadget>
<output>7/15 = around 0.466667</output>

<result>7/15 = around 0.466667</result>