The area of a trapezoid is 24 square decimeters, the height is 6 decimeters, the upper base is 3 decimeters, and the lower base is how many decimeters.
一个梯形的面积是24平方分米，高是6分米，上底是3分米，下底是多少分米．
<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">24 * (1/3)</gadget>
<output>8</output>

<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<result>5</result>