The area of a triangle is 50 square centimeters, the height is 10 centimeters, and the base is in centimeters.
一个三角形的面积是50平方厘米，高是10厘米，底是多少厘米．
<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">50 * (1/5)</gadget>
<output>10</output>

<result>10</result>