An elephant weighs 5.1 tons, which is 15 times the weight of a cow. How many tons does the elephant weigh more than the ox? ．
一只大象重5.1吨，是一头牛体重的15倍．则大象比黄牛重多少吨．．
<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>