A rectangular lawn is 30 meters long and long (5/6) wide. What is the area of this lawn?
一块长方形草坪，长30米，宽是长的(5/6)．这块草坪的面积是多少？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">30 * 30 * (5/6)</gadget>
<output>750</output>

<result>750</result>