A road is 480 meters long. (1/3) of the road was built on the first day, and (1/6) of the road was built on the second day. How much more meters were built on the first day than on the second day?
一条路全长480米，第一天修了这条路的(1/3)，第二天修了这条路的(1/6)，第一天比第二天多修多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/3) - (1/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">480 * (1/6)</gadget>
<output>80</output>

<result>80</result>