Uncle Li earned 21.3 yuan a day from selling cabbage, 19.8 yuan from selling tomatoes, and 16.7 yuan from selling cucumbers. How much does Uncle Li earn from selling vegetables this day?
李大爷一天卖白菜收入21.3元，卖西红柿收入19.8元，卖黄瓜收入16.7元．李大爷这一天卖菜收入一共多少元？
<gadget id="calculator">21.3 + 19.8 + 16.7</gadget>
<output>57.8</output>

<result>57.8</result>