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Three circles of equal area are shown in the figure above. If $$\frac{2}{3}$$ of the area of circle A is shaded, $$\frac{1}{2}$$ of the area of circle B is shaded, and $$\frac{1}{4}$$ of the area of circle C is shaded, what fraction of the sum of the areas of the three circles is shaded?
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· 相关考点
2.1.1 分数的加减乘除运算
以上解析由 考满分老师提供。