The area of a rectangle is 16 square meters. If the length is doubled and the width is reduced by 4 times, what is its area?
一个长方形的面积是16平方米，若长扩大2倍，宽缩小4倍，它的面积是多少．
<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">16 * (1/2)</gadget>
<output>8</output>

<result>8</result>