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If Isaac has 21 green marbles and 7 blue marbles and wants to make equal groups with none left over, what is the greatest number of groups he can make?
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If Isaac has 21 green marbles and 7 blue marbles and wants to make equal groups with none left over, what is the greatest number of groups he can make?

User Steve Faro
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2 Answers

6 votes
The greatest number of groups Issac can make is 7

User Hal Eisen
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4 votes
The answer is 4 groups because 21+7=28,28÷4=7,and 7×4=28
User GMB
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