Grandpa's house has a triangular wheat field with a bottom of 32 meters and a height of 15 meters. This year, a total of 134.4 kilograms of wheat was harvested. How many kilograms of wheat are harvested on average per square meter?
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134.4千克．平均每平方米收小麦多少千克？
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">32 * (5/2)</gadget>
<output>80</output>

<gadget id="calculator">134.4 / 80</gadget>
<output>1.68</output>

<result>1.68</result>