To build a road, (1/2) kilometer was built on the first day, (3/8) kilometer was built on the second day, and (5/8) kilometer is left. How many kilometers is this road?
修一条路，第一天修了(1/2)千米，第二天修了(3/8)千米，还剩(5/8)千米，这条路长多少千米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(1/2) + (3/8) + (5/8)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>