Question

Va rog e urgent!imi trebuie chiar acum! dau coroana!

Answer 1

a=5/36+3/24   amplificam  prima cu 2 si a doua cu 3

a=10/72+9/72=19/72

b=5/12+1/24  amplify prima cu 2

b=10/24+1/24=11/24

c=5/48+1/36 amplify prima cu 3 si a 2 cu 4

c=15/144+4/144=19/144

a+b=19/72+11/24  amplific a 2 cu 3

a+b=19/72+33/72=52/72  simplficam cu 4

a+b=13/18

a+c=19/72+19/144  amplificam prima cu 2

a+c=38/144+19/144=57/144  simplificam cu 3

a+c=19/48

a+b+c=13/18+19/144  amplificam prima cu 8

a+b+c=104/144+19/144=123/144  simplificam cu 3 => a+b+c=41/48