The area of a triangle is 30 square centimeters, its height is 6 centimeters, and its base is in centimeters.
一个三角形的面积是30平方厘米，它的高是6厘米，底是多少厘米．
<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">30 * (1/3)</gadget>
<output>10</output>

<result>10</result>