A rectangular open space with a perimeter of 320 meters, the ratio of length to width is 5:3, what is the area of this open space?
一块周长为320米的长方形空地，长和宽的比是5：3，这块空地的面积是多少？
<gadget id="calculator">320 / 2</gadget>
<output>160</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">160 * (5/8)</gadget>
<output>100</output>

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

<gadget id="calculator">160 * (3/8)</gadget>
<output>60</output>

<gadget id="calculator">100 * 60</gadget>
<output>6_000</output>

<result>6_000</result>