For a cuboid fish tank, the sum of length, width and height is 24dm; the ratio of length, width and height is 5:4:3. To make such a fish tank without a cover, how many square decimeters of glass are needed at least (neglecting the joints)?
一个长方体鱼缸，长、宽、高的和是24dm；长、宽、高的比是5：4：3．做这样一个无盖的鱼缸，至少需要多少平方分米的玻璃(接头出忽略不计)？
<gadget id="calculator">5 + 4 + 3</gadget>
<output>12</output>

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">24 * (5/12)</gadget>
<output>10</output>

<gadget id="calculator">4 / 12</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">24 * (1/3)</gadget>
<output>8</output>

<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">24 * (1/4)</gadget>
<output>6</output>

<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<gadget id="calculator">60 + 48</gadget>
<output>108</output>

<gadget id="calculator">108 * 2</gadget>
<output>216</output>

<gadget id="calculator">80 + 216</gadget>
<output>296</output>

<result>296</result>