A rectangle is formed by a rope 5 meters long, the ratio of length to width is 3:2, what is the area of the rectangle?
用一条长5米的绳子围成一个长方形，长和宽的比3：2，这个长方形的面积是多少．
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">5 / 2 / 5</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * 3 * (1/2) * 2</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>