Mom planted (2/9) cabbage, (1/9) celery, and the rest radish in a vegetable field. What percentage of the vegetable field did the cabbage and celery take up? What percentage of the vegetable field do radishes occupy?
妈妈把一块菜地的(2/9)种白菜，(1/9)种芹菜，其余的种萝卜，种的白菜和芹菜一共占这块菜地的几分之几？萝卜占菜地的几分之几？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<result>2/3 = around 0.666667</result>