Cut a piece of rectangular paper with a length of 72 cm and a width of 60 cm into a square paper with the same size and as large an area as possible. If there is no paper left, how many sheets can be cut at least?
把一张长72厘米，宽60厘米的长方形纸，裁成同样大小、面积尽可能大的正方形纸，纸无剩余，至少能裁多少张？
<gadget id="calculator">2 * 2 * 3</gadget>
<output>12</output>

<gadget id="calculator">72 / 12</gadget>
<output>6</output>

<gadget id="calculator">60 / 12</gadget>
<output>5</output>

<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<result>30</result>