The weights of Xiaohong, Xiaolan and Xiaofang are 56kg, 48kg and 55kg respectively. What is their average weight in kilograms?
小红、小蓝、小方的体重分别是56千克、48千克、55千克．她们的平均体重是多少千克？
<gadget id="calculator">56 + 48 + 55</gadget>
<output>159</output>

<gadget id="calculator">159 / 3</gadget>
<output>53</output>

<result>53</result>