The area of a parallelogram is 25.5 square decimeters, the height is 5.1 decimeters, what is its base in decimeters.
一个平行四边形的面积是25.5平方分米，高是5.1分米，它的底是多少分米．
<gadget id="calculator">25.5 / 5.1</gadget>
<output>5</output>

<result>5</result>