The road construction team builds a 10-kilometer road. The full length (2/5) was repaired on the first day, and 5 meters were repaired on the second day. How many kilometers are left to be repaired?
筑路队修一条10千米的公路．第一天修了全长的(2/5)，第二天修了5米，还有多少千米没有修？
<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">10 * (3/5)</gadget>
<output>6</output>

<gadget id="calculator">6 - 5</gadget>
<output>1</output>

<result>1</result>