There is a parallelogram with an area of 240 square decimeters. It is known that its height is 16 decimeters, and what is its base in decimeters.
有一个平行四边形面积为240平方分米，已知它的高是16分米，底是多少分米．
<gadget id="calculator">240 / 16</gadget>
<output>15</output>

<result>15</result>