In a vegetable field, (1/3) grows vegetables, (1/2) grows spinach, and the rest grows radishes. What percentage of the land is planted with radishes?
一块菜地，它的(1/3)种青菜，它的(1/2)种菠菜，其余的种萝卜．种萝卜的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 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/3) - (1/2)</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>