If a rectangle with a length of 14 decimeters and a width of 5 decimeters is drawn into a parallelogram, the area is reduced by 28dm**2, what is the height of the drawn parallelogram in decimeters?
把一个长14分米，宽5分米的长方形拉成一个平行四边形，面积减少28dm**2，拉成的平行四边形的高是多少分米．
<gadget id="calculator">14 * 5</gadget>
<output>70</output>

<gadget id="calculator">70 - 28</gadget>
<output>42</output>

<gadget id="calculator">42 / 14</gadget>
<output>3</output>

<result>3</result>