The perimeter of a rectangle is 40 meters, the ratio of width to length is 2:3, what is its area m**2.
一个长方形的周长是40米，宽与长的比是2：3，它的面积是多少m**2．
<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">20 * (3/5)</gadget>
<output>12</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">20 * (2/5)</gadget>
<output>8</output>

<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<result>96</result>