Use 144 cm wire to form a cuboid (not counting the joints). The ratio of length to width to height of this cuboid is 3:4:5. What is the longest side in centimeters?
用144厘米的铁丝围成一个长方体(接口处不计)，这个长方体的长宽高的长度比是3：4：5，最长的边是多少厘米．
<gadget id="calculator">144 / 4</gadget>
<output>36</output>

<gadget id="calculator">3 + 4 + 5</gadget>
<output>12</output>

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

<gadget id="calculator">36 * (5/12)</gadget>
<output>15</output>

<result>15</result>