There are 720 new batteries in Jialejia Supermarket, every 9 batteries are packed in a box, and every 5 boxes are packed in a box. How many boxes were packed in total?
佳乐家超市新近720节电池，每9节装一盒，每5盒装一箱．一共装了多少箱？
<gadget id="calculator">720 / 9 / 5</gadget>
<output>16</output>

<result>16</result>