exercice 1 p40
3 < 15/4 < 4 4 < 9/2 < 5 3 < 17/5 < 4 3 < 10/3 < 4 2 < 12/5 < 3 1 < 9/6 < 2
2 < 16/7 < 3 9 < 19/2 < 10 4 < 13/3 < 5 0 < 3/8 < 1 1 < 7/4 < 2 1 < 10/8 < 2
exercice 2 p40
2 x 4 < 9/2 < 2 x 5 2 x 4 < 14/3 < 2 x 5 5 x 3 < 16/5 < 5 x 4 6 x 4 < 28/6 < 6 x 5 9 x 0 < 6/9 < 9 x 1 3 x 10 < 32/3 < 3 x 11
4 < 9/2 < 5 4 < 14/3 < 5 3 < 16/5 < 4 4 < 28/6 < 5 0 < 6/9 < 1 10 < 32/3 < 11
9 x 5 < 46/9 < 9 x 6 8 x 4 < 38/8 < 8 x 5 6 x 8 < 53/6 < 6 x 9 7 x 3 < 24/7 < 7 x 4 7 x 11 < 78/7 < 7 x 12 3 x 17 < 52/3 < 3 x 18
5 < 46/9 < 6 4 < 38/8 < 5 8 < 53/6 < 9 3 < 24/7 < 4 11 < 78/7 < 12 17 < 52/3 < 18
exercice 6 p41
5/3 < 2 < 7/3 12/5 < 3 < 17/5
17/2 < 9 < 19/2 23/6 < 4 < 27/6
25/4 < 7 < 29/4 57/8 < 8 < 65/8
13/7 < 2 < 15/7 25/9 < 3 < 30/9
exercice 7 p41
1 < 3/2 < 2 3 < 19/6 < 4 8 < 34/4 < 9
0 < 2/4 < 1 6 < 33/5 < 7 4 < 20/6 < 5
2 < 7/3 < 3 5 < 16/3 < 6 1 < 4/3 < 2
BONUS exercice 8 p41
1 < 6/5 < 2 3 < 13/4 < 4 4 < 25/6 < 5 0 < 3/7 < 1 1 < 6/4 < 2 5 < 36/7 < 6
0 < 2/3 < 1 5= 40/8 9 < 19/2 <10 7 < 67/9 < 8 2 < 8/3 < 3 3 < 29/8 < 4
