An elephant weighs 7 tons, which is exactly 14 times the weight of a cow. How many tons does a cow weigh?
一头大象的体重是7吨，正好是一头牛体重的14倍，一头牛的体重是多少吨？
<gadget id="calculator">7 / 14</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>