Besoin d'aide merci d'avance. simplifie les calculs suivant en précisant les étapes (si c'est possible): 2/3+5/12 13/12+5/12 3/2+5/12 23/12+5/12 11/4+5/12 19/6+

Bonjour

Simplifie les calculs suivant en précisant les étapes (si c'est possible):

2/3+5/12 = (2 x 4) / (3 x 4) + 5/12 = 8/12 + 5/12 = 13/12

13/12+5/12 = 18/12 = (6 x 3) / (6 x 2) = 3/2

3/2+5/12 = (3 x 6) / (2 x 6) + 5/12 = 18/12 + 5/12 = 23/12

23/12+5/12 = 28/12 = (4 x 7) / (4 x 3 = 7/3

11/4+5/12 = (11 x 3) / (4 x 3) + 5/12 = 33/12 + 5/12 = 38/12 = (2 x 17) / (2 x 6) = 17/6

19/6+5/12 = (19 x 2) / (6 x 2) + 5/12 = 38/12 + 5/12 = 43/12  

43/12+5/12 = 48/12 = (12 x 4) / (12 x 1) = 4

4+5/12 = (4 x 12) / (1 x 12) + 5/12 = 48/12 + 5/12 = 53/12

53/12+5/12 = 58/12 = (2 x 29) / (2 x 6) = 29/6

29/6+5/12 = (29x 2) / (6 x 2) + 5/12 = 58/12 + 5/12 = 63/12= (3 x 21) / (3 x 4) = 21/4

21/4+5/12 = (21 x 3) / (4 x 3) + 5/12 = 63/12 + 5/12 = 68/12 = (4 x 17) / (4 x 3) = 17/3

17/3+5/12 = (17 x 4) / (3 x 4) + 5/12 = 68/12 + 5/12 = 73/12

73/12+5/12 = 78/12 = (6 x 13) / (6  x 2) = 13/2.

​