a = 2 x b = 2 x 342 = 684
b = c : 3 = 1 026 : 3 = 342
c = 6 x d = 6 x 171 = 1 026
d = e : 2 = 342 : 2 = 171
e = 3 x 114 = 342
Metoda mersului invers:
3 x 114 : 2 x 6 : 3 x 2 =
= 342 : 2 x 6 : 3 x 2 =
= 171 x 6 : 3 x 2 =
= 1 026 : 3 x 2 =
= 342 x 2 =
= 684