Bonjour
32/28 = (4 x 8) / (4 x 7) = 8/7
64/80 = (16 x 4) / (16 x 5) = 4/5
15/35 = (5 x 3) / (5 x 7) = 3/7
49/35 = (7 x 7) / (7 x 5) = 7/5
14/21 = (7 x 2) / (7 x 3) = 2/3
8/16 = (8 x 1) / (8 x 2) = 1/2
120/140 = (20 x 6) / (20 x 7) = 6/7
12/36 = (12 x 1) / (12 x 3) = 1/3
3 700 /1 200 = (100 x 37) / (100 x 12) = 37/12
48/56 = (8 x 6) / (8 x 7) = 6/7
81/99 = (9 x 9) / (9 x 11) = 9/11
77/66 = (11 x 7) / (11 x 6) = 7/6.
