The engineering team repairs a road with a length of 3000 meters, and the full length (2/5) has been repaired. How many meters are left to be repaired?
工程队修一条长3000米的公路，已修全长的(2/5)，还剩下多少米没有修？
<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">3_000 * (3/5)</gadget>
<output>1_800</output>

<result>1_800</result>