The sum of the upper and lower bases of a trapezoid is (8/9) meters, and the height is (2/3) meters. What is the area of the trapezoid in square meters?
一个梯形上下两底之和为(8/9)米，高(2/3)米，求梯形的面积是多少平方米？
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) / 2</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(8/9) * (1/3)</gadget>
<output>8/27 = around 0.296296</output>

<result>8/27 = around 0.296296</result>