If the length, width, and height of a cuboid are reduced by 1/2, how much is its volume reduced?
一个长方体长，宽，高各减少(1/2)，那么它的体积比原来减少多少？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>