If the base of the triangle is twice the base of the parallelogram and the height is three times the height of the parallelogram, then the area of the triangle is how many times the area of the parallelogram.
三角形的底是平行四边形底的2倍，高是平行四边形高的3倍，则三角形的面积是平行四边形面积的多少倍．
<gadget id="calculator">3 / 2 / 1</gadget>
<output>3/2 = around 1.5</output>

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

<result>3</result>