If the base of a parallelogram is enlarged by 3 times and the height is reduced by 9 times, how many times will its area be reduced?
平行四边形的底扩大3倍，高缩小9倍，它的面积缩小多少倍
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<result>3</result>