Grandpa Zhang’s family has a triangular wheat field with a bottom of 32 meters and a height of 15 meters. This year, a total of 144 kilograms of wheat was harvested. How many kilograms of wheat are harvested on average per square meter?
张爷爷家有一块三角形的小麦地，底32米、高15米，今年一共收小麦144千克．平均每平方米收小麦多少千克？
<gadget id="calculator">15 / 2</gadget>
<output>15/2 = around 7.5</output>

<gadget id="calculator">32 * (15/2)</gadget>
<output>240</output>

<gadget id="calculator">144 / 240</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>