The engineering team repairs a road with a length of 1600m, 40% of which has been repaired, and how many meters are left to be repaired.
工程队修一条长1600m的路，已修了40%，还剩下多少m没有修．
<gadget id="calculator">40 / 100</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">1_600 * (3/5)</gadget>
<output>960</output>

<result>960</result>