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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asked Jun 2, 2018 224k views

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Shafiqul Islam · Answer 1 · 2018-06-07T10:13:50+0000

The greatest number of groups would probably be 7 because:
21+7 = 28
28: 1, 2, 4, 7, 14
28/2 = 14
Half of 28 is 14 which means that each group will have 2 marbles. I am not sure if I'm correct, but I hope this helps! :)

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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