A wire is cut into three sections, the first section accounts for (1/3) of the total length, the second section accounts for (2/5) of the total length, and the third section is 6.4 meters long. How many meters is this wire?
一根电线截成三段，第一段占全长的(1/3)，第二段占全长的(2/5)，第三段长6.4米，这根电线长多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">1 - (1/3) - (2/5)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">6.4 / (4/15)</gadget>
<output>24</output>

<result>24</result>