Two people A and B start from A and B at the same time and walk towards each other. A travels 12 kilometers per hour, which is 1/5 more than B per hour. How many kilometers per hour does B travel?
甲、乙两人从A、B两地同时出发相向而行，甲每小时行12千米，比乙每小时多行(1/5)，乙每小时行多少千米？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">12 / (6/5)</gadget>
<output>10</output>

<result>10</result>