360 badmintons, every 6 pieces are put into a box, every 4 boxes are put into a box, how many boxes are needed to fill these badmintons?
360个羽毛球，每6个装入一盒，每4盒装入一箱，装完这些羽毛球需要多少个箱子？
<gadget id="calculator">360 / 6 / 4</gadget>
<output>15</output>

<result>15</result>