The perimeter of a rectangle is 98 decimeters, and the ratio of its length to width is 4:3, what is the area of the rectangle in square decimeters?
一个长方形周长98分米，它的长和宽的比为4：3，这个长方形的面积是多少平方分米．
<gadget id="calculator">98 / 2</gadget>
<output>49</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">49 * (4/7)</gadget>
<output>28</output>

<gadget id="calculator">49 - 28</gadget>
<output>21</output>

<gadget id="calculator">28 * 21</gadget>
<output>588</output>

<result>588</result>