The length, width, and height of a cuboid block are 6 cm, 4 cm, and 3 cm, respectively. If it is sawed into a largest cube, how much will its volume be reduced?
一个长方体木块的长、宽、高分别是6cm、4cm、3cm．如果把它锯成一个最大的正方体，体积比原来减少百分之几？
<gadget id="calculator">6 * 4 * 3</gadget>
<output>72</output>

<gadget id="calculator">3 * 3 * 3</gadget>
<output>27</output>

<gadget id="calculator">72 - 27</gadget>
<output>45</output>

<gadget id="calculator">45 / 72</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>