Bonjour
Simplifie les fractions par 5.
25/10= (5 x 5) / (5 x 2) = 5/2
35/30= (5 x 7) / (5 x 6) = 7/6
15/75= (5 x 3) / (5 x 15) = 3/15
55/65= = (5 x 11) / (5 x 13) = 11/13
Simplifie les fractions par 2;3; 5 ou 9.
81/18= (9 x 9) / (9 x 2) = 9/2
122/48= (2 x 61) / (2 x 24) = 61/24
36/123= (3 x 12) / (3 x 41) = 12/41
90/25= (5 x 18) / (5 x 5) = 18/5.
