A rectangular vegetable field is 18 meters long and 15 meters wide. Use the (2/9) vegetable field to grow radishes, how many square meters are the radishes planted?
一个长方形菜地，长为18米，宽是15米．用菜地的(2/9)种萝卜，萝卜种了多少平方米？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">18 * 15 * (2/9)</gadget>
<output>60</output>

<result>60</result>