A piece of rectangular cardboard with a length of 48 cm and a width of 18 cm should be cut into circular pieces of paper each with a diameter of 6 cm. How many pieces can be cut at most?
一张长48厘米，宽18厘米的长方形硬纸板，要把它剪成每个直径是6厘米的圆形纸片，最多能剪多少个．
<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<gadget id="calculator">18 / 36</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">48 * (1/2)</gadget>
<output>24</output>

<result>24</result>