Question

rezolvați va rog exercițiul....e urgent! !!

Answer 1

Adu la aceelas numitor si rezolva fractia :)

Answer 2

m = 1/3 - 1/6 - 1/12 = 1/12
n  = 1/3 + 1/6 + 1/12 =  7/12
m+n = 8/12 = 2/3
m - n = 6/12 = 1/2
(m+n)/(m-n) = 2/3 · 2/1 = 4/3