[(-2/3-1/9+6/3):13/18+5 2/6 X(3/8-7/16)]
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[(-2/3-1/9+6/3):13/18+5 2/6 X(3/8-7/16)]
=
=[(-6/9-1/9+18/9):13/18+32/6 X(6/16-7/16)] =
=[(11/9)*18/13+32/6 X(-1/16)] =(22/13-1/3) =66/39-13/39=53/39
=[(-6/9-1/9+18/9):13/18+32/6 X(6/16-7/16)] =
=[(11/9)*18/13+32/6 X(-1/16)] =(22/13-1/3) =66/39-13/39=53/39
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