Răspuns:
c) [(1/2+2/3+5/6):7/12-2/5x5/6]x4/1:(5x12/25-1 1/3)
[(6/6+12/6+5/6):7/12-2/5x5/6]x4/1:(5x12/25-1 1/3)
(23/6:7/12-2/5x5/6)x4/1:(5x12/25-1 1/3)
(276/42-10/30)x4/1:(60/25-4/3)
(1380/210-70/210)x4/1:(180/75-100/75)
1310/210x4/1:80/75
5240/210:80/75
393000/16800
3930/16
pe al doilea nu stiu sa l fac scuze dar sper ca e corect si ca te am ajutat!
