Dig a 24-kilometer-long canal. The full length (2/5) was dug in the first week, and the rest was dug in the second week. How many kilometers were dug in the second week?
挖一条24千米长的水渠，第一周挖了全长的(2/5)，余下的第二周挖完，第二周挖了多少千米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">24 * (3/5)</gadget>
<output>72/5 = around 14.4</output>

<result>72/5 = around 14.4</result>