Răspuns :
Bunaa!♡
(1/12 + 1/24 - 1/36) : (1/4 + 3/5) x 2 si 3/7 =
(1/12 + 1/24 - 1/36) : (1/4 + 3/5) x 2 si 3/7 == (6/72 + 3/72 - 2/72) : (5/20 + 12/20) x 17/7 =
(1/12 + 1/24 - 1/36) : (1/4 + 3/5) x 2 si 3/7 == (6/72 + 3/72 - 2/72) : (5/20 + 12/20) x 17/7 == 7/72 : 17/20 x 17/7 =
(1/12 + 1/24 - 1/36) : (1/4 + 3/5) x 2 si 3/7 == (6/72 + 3/72 - 2/72) : (5/20 + 12/20) x 17/7 == 7/72 : 17/20 x 17/7 == 7/72 x 20/17 x 17/7 =
(1/12 + 1/24 - 1/36) : (1/4 + 3/5) x 2 si 3/7 == (6/72 + 3/72 - 2/72) : (5/20 + 12/20) x 17/7 == 7/72 : 17/20 x 17/7 == 7/72 x 20/17 x 17/7 = = 5/18
Sper ca te-am ajutat!♡♡