Use a piece of iron wire to form a rectangular parallelepiped frame so that its aspect ratio is 6:4:3. It is known that the length is 6 cm longer than the width, how long is the wire in cm?
用一根铁丝围成一个长方体框架，使它的长宽高比为6：4：3．已知长比宽多6厘米，这根铁丝长多少厘米？
<gadget id="calculator">6 + 4 + 3</gadget>
<output>13</output>

<gadget id="calculator">6 / 13</gadget>
<output>6/13 = around 0.461538</output>

<gadget id="calculator">4 / 13</gadget>
<output>4/13 = around 0.307692</output>

<gadget id="calculator">(6/13) - (4/13)</gadget>
<output>2/13 = around 0.153846</output>

<gadget id="calculator">6 / (2/13)</gadget>
<output>39</output>

<result>39</result>