The distance between A and B is 480 km. A car has already driven 1/3 of the way from point A to point B. How many kilometers will it take to reach the midpoint?
甲、乙两地相距480千米．一辆汽车从甲地开往乙地，已经行驶了全程的(1/3)，再行多少千米就可以到达中点？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">480 * (1/2)</gadget>
<output>240</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">480 * (1/3)</gadget>
<output>160</output>

<gadget id="calculator">240 - 160</gadget>
<output>80</output>

<result>80</result>