The area of a parallelogram is 8 square meters, its base is (8/9) meters, and its height is in meters.
一个平行四边形的面积是8平方米，它的底是(8/9)米，高是多少米．
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">8 / (8/9)</gadget>
<output>9</output>

<result>9</result>