已知a/1+b/1=3,求2a-3ab+2b/3a+2ab+3b的值2a-3ab+2b/3a+2ab+3b怎么化简?

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已知a/1+b/1=3,求2a-3ab+2b/3a+2ab+3b的值2a-3ab+2b/3a+2ab+3b怎么化简?
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已知a/1+b/1=3,求2a-3ab+2b/3a+2ab+3b的值2a-3ab+2b/3a+2ab+3b怎么化简?
已知a/1+b/1=3,求2a-3ab+2b/3a+2ab+3b的值
2a-3ab+2b/3a+2ab+3b怎么化简?

已知a/1+b/1=3,求2a-3ab+2b/3a+2ab+3b的值2a-3ab+2b/3a+2ab+3b怎么化简?
因为a/1+b/1=3 两边同乘ab得a+b=3ab
(2a-3ab+2b)/(3a+2ab+3b)=(2a+2b-3ab)/(3a+3b+2ab)=(6ab-3ab)/(9ab+2ab)=3/11

?关于什么的额

首先是1/a还是a/1呢