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问题: 2又1/2+(-3又1/3)+(+4又1/4)+(-6又1/6)

从左往右按顺序算(详细点)

解答:

2又1/2+(-3又1/3)+(+4又1/4)+(-6又1/6)
=5/2+(-10/3)+(17/4)+(-37/6)
=-5/6+(17/4)+(-37/6)
=41/12+(-37/6)
=-11/4