One road has been repaired (3/8), and how many roads are left unrepaired.
一条公路修了(3/8)，还剩下多少没有修．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

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