Two engineering teams, A and B, are paving a 1,400-meter-long road. They work from both ends at the same time. Team A paves 80 meters a day, and team B paves 60 meters a day. How many days will it take to finish the road? (two ways to answer)
甲、乙两工程队铺一条长1400米的公路，他们从两端同时施工，甲队每天铺80米，乙队每天铺60米，几天后能够铺完这条公路？(两种方法解答)
<gadget id="calculator">80 / 1_400</gadget>
<output>2/35 = around 0.057143</output>

<gadget id="calculator">60 / 1_400</gadget>
<output>3/70 = around 0.042857</output>

<gadget id="calculator">(2/35) + (3/70)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 / (1/10)</gadget>
<output>10</output>

<result>10</result>