Espessione aiuto (71375)

[antonio98xs]

chi mi risolve questa espressione per domani :
28/3*{13/8-1/7*[(4-2/3):8/3(3/8 )^2*(7/4*7/9+5/12)]}

la capite ????

[di giorgi]

28\3x{13\8-1\7x[(12-2\3):8\3x9\64x(49\36+5\12)]}
28\3x{13\8-1\7x[10\3x3\8x9\64x(49+15\36)]}
28\3x{13\8-1/7x[45\128x64\36]}
28\3x{13\8-1\7x5\4}
28\3x{13\8-5\28}
28\3x{91-10\56}
28\3x81\56=27\2