The perimeter of a rectangular vegetable field is 360 meters, and the width is long (4/5). What is the area of this vegetable field?
一块长方形菜地周长为360米，宽是长的(4/5)，这块菜地的面积是多少？
<gadget id="calculator">360 / 2</gadget>
<output>180</output>

<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">180 * (5/9)</gadget>
<output>100</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">180 * (4/9)</gadget>
<output>80</output>

<gadget id="calculator">100 * 80</gadget>
<output>8_000</output>

<result>8_000</result>