A factory produced 480 tons of chemical fertilizers in the first half of 2004. How many tons of chemical fertilizers were produced per month on average in the first half of the year?
某工厂2004年上半年生产化肥480吨，上半年平均每月生产化肥多少吨？
<gadget id="calculator">480 / 6</gadget>
<output>80</output>

<result>80</result>