The perimeter of a lawn is 64m, and the ratio of length to width is 5:3. What is the area of the lawn in square meters?
一块草地的周长是64m，长与宽的比是5：3，这块草地面积是多少平方米？
<gadget id="calculator">64 / 2</gadget>
<output>32</output>

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

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">32 * (5/8)</gadget>
<output>20</output>

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

<gadget id="calculator">32 * (3/8)</gadget>
<output>12</output>

<gadget id="calculator">20 * 12</gadget>
<output>240</output>

<result>240</result>