The total agricultural population and urban population of a certain county are 51,000, of which 14,900 are urban. How many million more agricultural population than urban population?
某县农业人口和城镇人口一共有5.1万人，其中城镇人口1.49万人．农业人口比城镇人口多多少万人？
<gadget id="calculator">5.1 - 1.49 - 1.49</gadget>
<output>2.12</output>

<result>2.12</result>