The area of a triangle is 42dm**2, the base is 24dm, and the height is dm.
一个三角形的面积是42dm**2，底是24dm，高是多少dm．
<gadget id="calculator">2 / 24</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">42 * (1/12)</gadget>
<output>7/2 = around 3.5</output>

<result>7/2 = around 3.5</result>