There are a total of 360 photos, each album has 15 pages, and each page can insert 6 photos. If all the photos are inserted, how many copies of this album are needed?
一共有360张照片，每本相册有15页，每页可以插入6张照片，若是将照片全部插完，需要这样的相册多少本？
<gadget id="calculator">6 * 15</gadget>
<output>90</output>

<gadget id="calculator">360 / 90</gadget>
<output>4</output>

<result>4</result>