The area of a parallelogram is 7.5 decimeters square, the base is 5 decimeters, and the height is decimeters.
一个平行四边形的面积是7.5平方分米，底是5分米，高是多少分米．
<gadget id="calculator">7.5 / 5</gadget>
<output>1.5</output>

<result>1.5</result>