A section of road is (18/5) kilometers long, and the full length (1/3) is repaired in the first week. The ratio of the length repaired in the second week to the length repaired in the first week is 2:3. How many kilometers are repaired in the second week? ?
一段路长(18/5)千米，第一周修全长的(1/3)，第二周修的长度与第一周修的长度比是2：3，第二周修了多少千米？
<gadget id="calculator">18 / 5</gadget>
<output>18/5 = around 3.6</output>

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

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(18/5) * (1/3) * (2/3)</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>