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2014-10-31T11:32:45+01:00
A=3/4+5/4/(4/3-1/2)
A=3+5/4/(8/6-3/6)
Ah3+5/4/(8-3/6)
A=8/4/5/6
A= 8/4*6/5
A=48/20
A=12*4/5*4
A=12/5