To build a road that is (7/8) kilometers long, and (3/5) kilometers have been built, how much less than the remaining kilometers have been repaired?
修一段长(7/8)千米的公路，已经修了(3/5)千米，剩下的比已修的少多少千米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">(7/8) - (3/5)</gadget>
<output>11/40 = around 0.275</output>

<gadget id="calculator">(3/5) - (11/40)</gadget>
<output>13/40 = around 0.325</output>

<result>13/40 = around 0.325</result>