There are several rectangular wooden boards with a length of 36 cm and a width of 24 cm. At least how many boards can be used to form a square.
有长36厘米，宽24厘米的长方形木板若干块，至少用多少块就可以拼成一个正方形．
<gadget id="calculator">36 * 24</gadget>
<output>864</output>

<gadget id="calculator">72 / 864</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">72 * (1/12)</gadget>
<output>6</output>

<result>6</result>