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Mathematics
OpenStudy (anonymous):

7/12 - 4/21

OpenStudy (anonymous):

147/252 - 48/252= 99/252= 0.39

OpenStudy (anonymous):

7•21/12•21 - 4•12/21•12= 147/252 - 48/252= 99/252

OpenStudy (anonymous):

11/28

OpenStudy (saifoo.khan):

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