A rectangular experimental wheat field with a length of 120 decimeters and a width of 3 meters. A total of 43.2 kilograms of wheat is harvested. How many kilograms of wheat are harvested on average per square meter?
一块长120分米，宽3米的长方形实验麦地．共收小麦43.2千克，平均每平方米收小麦多少千克？
<gadget id="calculator">120 / 10</gadget>
<output>12</output>

<gadget id="calculator">12 * 3</gadget>
<output>36</output>

<gadget id="calculator">43.2 / 36</gadget>
<output>1.2</output>

<result>1.2</result>