2a/5a^2b+3b/10ab^2=?1、3/(x-1)^2-3x/(x-1)^2=?2、2a/5a^2b+3b/10ab^23、2m/5n^2p-3n/4mp^2

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2a/5a^2b+3b/10ab^2=?1、3/(x-1)^2-3x/(x-1)^2=?2、2a/5a^2b+3b/10ab^23、2m/5n^2p-3n/4mp^2
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2a/5a^2b+3b/10ab^2=?1、3/(x-1)^2-3x/(x-1)^2=?2、2a/5a^2b+3b/10ab^23、2m/5n^2p-3n/4mp^2
2a/5a^2b+3b/10ab^2=?
1、3/(x-1)^2-3x/(x-1)^2=?
2、2a/5a^2b+3b/10ab^2
3、2m/5n^2p-3n/4mp^2

2a/5a^2b+3b/10ab^2=?1、3/(x-1)^2-3x/(x-1)^2=?2、2a/5a^2b+3b/10ab^23、2m/5n^2p-3n/4mp^2
1、3-3x/(x-1)^2
2、7/(10ab)
3、(8m^2p^2n^2-15n^2^3)/(20n'2mp'2)