The area of a triangle is 42 decimeters square, the base is 12 decimeters, and the height is decimeters.
三角形的面积是42平方分米，底是12分米，高是多少分米．
<gadget id="calculator">2 / 12</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">42 * (1/6)</gadget>
<output>7</output>

<result>7</result>