For a parallelogram, the base is enlarged by 6 times and the height is reduced by 2 times, what is the area of the parallelogram?
一个平行四边形，底扩大6倍，高缩小2倍，那么这个平行四边形的面积多少．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<result>3</result>