The area of a parallelogram is (4/15) square meters, what is the area of a triangle with the same base and height?
一个平行四边形的面积是(4/15)平方米，与它等底等高的三角形的面积是多少平方米？
<gadget id="calculator">4 / 15</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">(4/15) / 2</gadget>
<output>2/15 = around 0.133333</output>

<result>2/15 = around 0.133333</result>