The area of a triangle is 8.4 square meters, the height is 3 meters, and the base is in meters.
一个三角形的面积是8.4平方米，高是3米，底是多少米．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">8.4 * (2/3)</gadget>
<output>5.6</output>

<result>5.6</result>