It is known that the area of a parallelogram is 227.5 square decimeters, its base is 18.2 decimeters long, how many decimeters is its height less than its base?
已知一个平行四边形的面积是227.5平方分米，它的底长18.2分米，它的高比底少多少分米？
<gadget id="calculator">227.5 / 18.2</gadget>
<output>12.5</output>

<gadget id="calculator">18.5 - 12.5</gadget>
<output>6</output>

<result>6</result>