A rectangular vegetable field is 60 meters long and long (3/5) wide. How many square meters does this vegetable field have?
一块长方形的菜地长60米，宽是长的(3/5)，这块菜地的面积有多少平方米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">60 * (3/5) * 60</gadget>
<output>2_160</output>

<result>2_160</result>