Bonsoir
1) Simplifier les fractions suivantes :
44/55 = (11 x 4) / (11 x 5) = 4/5
18/24 = (6 x 3) / (6 x 4) = 3/4
6/9 = (3 x 2) / (3 x 3) = 2/3
4/6 = (2 x 2) / (2 x 3) = 2/3
22/33 = (11 x 2) / (11 x 3) = 2/3
10/15 = (5 x 2) / (5 x 3) = 2/3
15/20 = (5 x 3) / (5 x 4) = 3/4
20/24 = (4 x 5) / (4 x 6) = 5/6
12/15 = (3 x 4) / (3 x 5) = 4/5
25/30 = (5 x 5) / (5 x 6) = 5/6
8/10 = (2 x 4) / (2 x 5) = 4/5
9/12 = (3 x 3) / (3 x 4) = 3/4
4/5 = irréductible
36/48 = (12 x 3) / (12 x 4) = 3/4
40/50 = (10 x 4) / (10 x 5) = 4/5
5/6 = irréductible
33/44 = (11 x 3) / (11 x 4) = 3/4
10/12 = (2 x 5) / (2 x 6) = 5/6
55/66 = (11 x 5) / (11 x 6) = 5/6
35/42 = (7 x 5) / (7 x 6) = 5/6
2/3 = irréductible
15/18 = (3 x 5) / (3 x 6) = 5/6
3/4 = irréductible
6/8 = (2 x 3) / (2x 4) = 3/4.
