(1)3ab分之h,2a²b分之k² (2)2(m+4)分之n,m²-16分之-5m
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![(1)3ab分之h,2a²b分之k² (2)2(m+4)分之n,m²-16分之-5m](/uploads/image/z/5542768-64-8.jpg?t=%EF%BC%881%EF%BC%893ab%E5%88%86%E4%B9%8Bh%2C2a%26%23178%3Bb%E5%88%86%E4%B9%8Bk%26%23178%3B+%EF%BC%882%EF%BC%892%EF%BC%88m%2B4%EF%BC%89%E5%88%86%E4%B9%8Bn%2Cm%26%23178%3B-16%E5%88%86%E4%B9%8B-5m)
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(1)3ab分之h,2a²b分之k² (2)2(m+4)分之n,m²-16分之-5m
(1)3ab分之h,2a²b分之k² (2)2(m+4)分之n,m²-16分之-5m
(1)3ab分之h,2a²b分之k² (2)2(m+4)分之n,m²-16分之-5m
1、最简公分母是6a²b
3ab分之h=2ah/6a²b
2a²b分之k²=3k²/6a²b
2、最简公分母是2(m+4)(m-4)
∴2(m+4)分之n=n(m-4)/2(m+4)(m-4)
m²-16分之-5m=-10m/2(m+4)(m-4)