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20-09-2016
Mathematics

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Divide 33 photos into groups so the ratio is 4 to 7

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texaschic101 texaschic101

22-09-2016

4:7....added = 11

4/11(33) = 132/11 = 12 <== one group
7/11(33) = 231/11 = 21 <== the other group

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