Aider moi pour le reste svp

Bonjour,

25/75 = (25 x 1) / (25 x 3) = 1/3

18/35 = irréductible

60/70 = (10 x 6) / (10 x 7) = 6/7

105/135 = (15 x 7) / (15 x 9) = 7/9

42/69 = (3 x 14) / (3 x 23) = 14/23

63/77 = (7 x 9) / (7 x 11) = 9/11

14/75 = irréductible

21/27 = (3 x 7) / (3 x 9) = 7/9

48/90 = (6 x 8) / (6 x 15) = 8/15

42/126 = (42 x 1) / (42 x 3) = 1/3

7/12 = irréductible

84/175 = (7 x 12) / (7 x 25) = 12/25

49/105 = (7 x 7) / (7 x 15) = 7/15

128/160 = (32 x 4) / (32 x 5) = 4/5