After cutting off the length (1/3) and the width and height (1/4) of a cuboid, how much less volume will it have than the original
把一个长方体的长削去(1/3)，宽、高各削去(1/4)后，体积比原来少多少
<gadget id="calculator">1 * 1 * 1</gadget>
<output>1</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(2/3) * (3/4) * (3/4)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(5/8) / 1</gadget>
<output>5/8 = around 0.625</output>

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