The base of a parallelogram is 12 cm, and the height is 1/3 of the base. What is the area of the parallelogram?
一个平行四边形的底是12厘米，高是底的(1/3)，这个平行四边形的面积是多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">12 * (1/3)</gadget>
<output>4</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<result>48</result>