An elephant weighs 5.1 tons, which is 15 times the weight of a cow. How many tons does this elephant weigh more than this cattle?
一只大象重5.1吨，是一头牛体重的15倍．这头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">15 - 1</gadget>
<output>14</output>

<gadget id="calculator">0.34 * 14</gadget>
<output>4.76</output>

<result>4.76</result>