Math help: what equation should i use to solve this problem

[From: ] [author: ] [Date: 12-02-16] [Hit: ]

2/7 are greenand the rest are blue. What fraction of the marbles are blue?X would be the blue marbles-are you trolling, or do you actually think you use an equation? are you in the 4th grade? because theres no equation involved.......

I need to know what equation to use to solve this problem: In a bag of marbles, 2/5 are red, 2/7 are green and the rest are blue. What fraction of the marbles are blue?

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1-2/5-2/7=x

X would be the blue marbles

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are you trolling, or do you actually think you use an equation? are you in the 4th grade? because there's no equation involved.

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