28 cm long iron wire forms a cuboid, the ratio of length, width and height is 4:2:1, what is the volume of this cuboid in cubic centimeters
一根长28厘米的铁丝围成一个长方体，长、宽、高的比是4：2：1，这个长方体的体积是多少立方厘米
<gadget id="calculator">28 / 4</gadget>
<output>7</output>

<gadget id="calculator">4 + 2 + 1</gadget>
<output>7</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">7 * (4/7)</gadget>
<output>4</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">4 * 7 * (2/7) * 7 * (1/7)</gadget>
<output>8</output>

<result>8</result>