If a parallelogram has an area of 30 square decimeters and a height of 6 decimeters, what is the base of a triangle with the same base and height?
一平行四边形的面积为30平方分米，高为6分米，和它等底等高的三角形的底为多少分米．
<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>