Xiao Mei weighs 28.6 kg, Xiao Wen weighs 32.7 kg, and Xiao Ai weighs 25.4 kg. How many kilograms do the three of them weigh together?
小美重28.6千克，小文重32.7千克，小艾重25.4千克．他们三人共重多少千克？
<gadget id="calculator">28.6 + 32.7 + 25.4</gadget>
<output>86.7</output>

<result>86.7</result>