To build a water canal, the full length (3/8) was built on the first day, and the full length (1/8) was repaired more than the first day on the second day. What fraction of the full length was repaired on the second day?
修一条水渠，第一天修了全长的(3/8)，第二天比第一天多修全长的(1/8)，第二天修了全长的几分之几？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(3/8) + (1/8)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>