The perimeter of a rectangular lawn is 160 meters, and its width is long (3/5). What is the area of this lawn?
一块长方形草地的周长是160米，它的宽是长的(3/5)，这块草地的面积是多少？
<gadget id="calculator">160 / 2</gadget>
<output>80</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">80 * (3/8)</gadget>
<output>30</output>

<gadget id="calculator">80 - 30</gadget>
<output>50</output>

<gadget id="calculator">50 * 30</gadget>
<output>1_500</output>

<result>1_500</result>