The length, width, and height of a cuboid iron block are 2 decimeters, 4 decimeters, and 6 decimeters respectively. If it is melted and cast into a cylinder with a base area of 15 square decimeters, how many decimeters is the height of the cylinder?
一个长方体铁块的长、宽、高分别是2分米、4分米、6分米，把它熔化铸成一个底面积是15平方分米的圆柱，这个圆柱的高是多少分米？
<gadget id="calculator">6 / 15</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">2 * 4 * (2/5)</gadget>
<output>16/5 = around 3.2</output>

<result>16/5 = around 3.2</result>