A rectangular vegetable field has a perimeter of 120 meters, and the ratio of its length to width is 5:3. What is the area of this rectangular vegetable field in square meters?
一个长方形菜地，周长是120米，它的长与宽的比是5：3，这块长方形菜地面积是多少平方米？
<gadget id="calculator">120 / 2</gadget>
<output>60</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">60 * (5/8)</gadget>
<output>75/2 = around 37.5</output>

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

<gadget id="calculator">60 * (3/8)</gadget>
<output>45/2 = around 22.5</output>

<gadget id="calculator">(75/2) * (45/2)</gadget>
<output>3_375/4 = around 843.75</output>

<result>3_375/4 = around 843.75</result>