Cut a piece of rectangular paper with a length of 70 cm and a width of 50 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70厘米，宽50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 * 5</gadget>
<output>10</output>

<gadget id="calculator">70 / 10</gadget>
<output>7</output>

<gadget id="calculator">50 / 10</gadget>
<output>5</output>

<gadget id="calculator">7 * 5</gadget>
<output>35</output>

<result>35</result>