A travels 18 kilometers in 3 hours, and B travels 7 kilometers per hour, then v B: v A = how much (fill in "ratio").
甲3小时行18千米，乙每小时行7千米，则v乙：v甲=多少(填"比值")．
<gadget id="calculator">18 / 3</gadget>
<output>6</output>

<gadget id="calculator">7 / 6</gadget>
<output>7/6 = around 1.166667</output>

<result>7/6 = around 1.166667</result>