The perimeter of a rectangle is 160 cm, and the ratio of its length to width is 5:3. What is the area of the rectangle in square centimeters?
一个长方形的周长160厘米，它的长、宽的比是5：3，这个长方形的面积是多少平方厘米？
<gadget id="calculator">160 / 2</gadget>
<output>80</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">80 * (5/8)</gadget>
<output>50</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">50 * 30</gadget>
<output>1_500</output>

<result>1_500</result>