Question

Va rog e urgent
dau coroana​

Answer 1

((1/2+2/3+5/6):7/12-2/5×5/6)×1/4(5×12/25-1+1/3)

1/2- amplificam cu 3

2/3- amplificam cu 2

((3/6+4/6+5/6):7/12-2/6)×1/4:60/25-4/3

(12/6×12/7-2/6)×1/4: 60/25-4/3

144/42×1/4 : 60/25-4/3

36/42 :60/25 -4/3

900/1050 : 2520/1050- simplificam totul prin 10

90/105 : 252/105= 90/105×105/252

=90/252-simplificam prin 2

45/126