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2010-03-22T22:09:49+01:00
5 4/6+(3 11/18-1 2/8)=
5 4/6 + (3 44/72 - 1 18/72) = 5 4/6 + 2 26/72 = 5 4/6 + 2 13/36 =
5 24/36 + 2 13/36 = 7 37/36 = 8 1/36

4 4/11-3 3/8+2 9/33 = 4 4/11 - 3 99/264 + 2 72/264 =
4 4/11 - 5 171/264 = 4 96/264 - 5 171/264 =
3 360/264 - 5 171/264 = -2 189/264


2 3/7+4 3/9-1 12/14= 2 27/63 + 4 21/63 = 6 48/63 = 6 16/21


6 3/5-4 1/3-2 7/30= 6 18/30 - 4 10/30 - 2 7/30 =
2 8/30 - 2 7/30 = 1/30