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Points A, B, C, and D are equally spaced on line segment AD, as shown. If $$\frac{1}{3}$$ of segment AB, all of segment BC, and $$\frac{2}{5}$$of segment CD were removed, what fraction of segment AD would remain?
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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。