Cut a rectangular piece of paper with a length of 42 cm and a width of 24 cm into a square of the same size. If there is no paper left, how many pieces can be cut at least?
将一个长42厘米，宽24厘米的长方形纸片截成同样大小的正方形，纸没有剩余，至少可以截多少个？
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<gadget id="calculator">24 / 36</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">42 * (2/3)</gadget>
<output>28</output>

<result>28</result>