(2/5) of a vegetable field are planted with cabbage, and the rest are planted with celery. What percentage of the whole vegetable field is planted with celery?
一块菜地的(2/5)种了白菜，剩下的种芹菜．种芹菜的地占整块菜地的几分之几？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>