The area of a parallelogram is 4.5 square decimeters, how many decimeters is the base, and its height is 1.5 decimeters.
一个平行四边形的面积是4.5平方分米，底是多少分米，它的高才是1.5分米．
<gadget id="calculator">4.5 / 1.5</gadget>
<output>3</output>

<result>3</result>