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主要内容

合并同类项: 有理数作为系数

问题

合并同类项,化简式子.
minus, start fraction, 2, divided by, 3, end fraction, p, plus, start fraction, 1, divided by, 5, end fraction, minus, 1, plus, start fraction, 5, divided by, 6, end fraction, p
不会做了?
不会做了?