The perimeter of a rectangular piece of land is 56 meters, and the ratio of its length to width is 4:3. What is the area of this piece of land?
一块长方形地的周长是56米，它的长与宽的比是4：3，这块地的面积是多少．
<gadget id="calculator">56 / 2</gadget>
<output>28</output>

<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">28 * (4/7)</gadget>
<output>16</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">28 * (3/7)</gadget>
<output>12</output>

<gadget id="calculator">16 * 12</gadget>
<output>192</output>

<result>192</result>