A section of road is repaired every day to the full length (1/12), how much is the total length to be repaired in 4 days.
一段公路每天修全长的(1/12)，4天修全长的多少．
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 4</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>