Use 240 cm long iron wire to make a cuboid frame, the length is the sum of the width and height (5/7), and the width is the height (2/3), what is the volume of this cuboid? (neglected at joints)
用240厘米长的铁丝做成一个长方体框架，长是宽、高之和的(5/7)，宽是高的(2/3)，这个长方体的体积是多少？(接头处忽略不计)
<gadget id="calculator">240 / 4</gadget>
<output>60</output>

<gadget id="calculator">7 + 5</gadget>
<output>12</output>

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

<gadget id="calculator">60 * (5/12)</gadget>
<output>25</output>

<gadget id="calculator">60 - 25</gadget>
<output>35</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">35 * (2/5)</gadget>
<output>14</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">35 * (3/5)</gadget>
<output>21</output>

<gadget id="calculator">25 * 14 * 21</gadget>
<output>7_350</output>

<result>7_350</result>