construction team lays (7/8) kilometers of pipelines on the first day, which is (2/8) kilometers more than that on the second day. How many kilometers will the pipeline be laid the next day?
一个施工队，第一天铺管道(7/8)千米，比第二天多铺(2/8)千米．第二天铺管道多少千米？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(7/8) - (1/4)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>