若a/b=c/d=f/e=3/5,且b-2d+3e不等于0,则(a-2c+3f)/(b-2d+3e)=?谢谢了,大神帮忙啊

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若a/b=c/d=f/e=3/5,且b-2d+3e不等于0,则(a-2c+3f)/(b-2d+3e)=?谢谢了,大神帮忙啊
若a/b=c/d=f/e=3/5,且b-2d+3e不等于0,则(a-2c+3f)/(b-2d+3e)=?谢谢了,大神帮忙啊

若a/b=c/d=f/e=3/5,且b-2d+3e不等于0,则(a-2c+3f)/(b-2d+3e)=?谢谢了,大神帮忙啊
为3/5