8: (4/7+1/3)+(2целых7/2-1/3) *(1/5): 1: 24 по действиям

8:(4/7+1/3)+(2целых7/2-1/3) *(1/5):1:24
4/7+1/3=4*3/21+7/21=19/21
2 7/2-1/3=11*3/6-2/6=31/6
8:19/21=8*21/19=168/19
31/6*1/5=31/30
31/30:1=31/30
31/30:24=31/30*24=31/720
168/19+31/720=168*720/13680+31*19/13680=120960/13680+589/13680=
121549/13680=8 12109/13680