To build a road, (1/8) was repaired on the first day, and (2/8) was repaired on the second day, how much is left to be repaired?
修一条公路，第一天修了(1/8)，第二天修了(2/8)，还剩下多少没有修？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

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

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

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