Cut a rectangle with a length of 120 cm and a width of 100 cm into squares of equal size, how many squares can be cut into at least no paper left?
把一张长120厘米、宽100厘米的长方形裁成大小相等的正方形，纸无剩余，至少能裁成多少个正方形？
<gadget id="calculator">2 * 2 * 5</gadget>
<output>20</output>

<gadget id="calculator">20 * 20</gadget>
<output>400</output>

<gadget id="calculator">100 / 400</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">120 * (1/4)</gadget>
<output>30</output>

<result>30</result>