An elephant weighs 5.1 tons, which is 15 times that of a ox. How many tons does this elephant weigh more than this ox?
大象体重5.1吨，是一头黄牛的15倍．这只大象比这头黄牛重多少吨？
<gadget id="calculator">5.1 / 15</gadget>
<output>0.34</output>

<gadget id="calculator">5.1 - 0.34</gadget>
<output>4.76</output>

<result>4.76</result>