Answers

2014-09-12T10:38:36+08:00
2 1/3 + 3/4 = 7/3 + 3/4 = 28/12 + 9/12 = 37/12

3 1/3 - 7/3 = 10/3 - 7/3 = 3/3 = 1

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2014-09-12T18:07:09+08:00