Pouvez m aider : Ranger ces nombres dans l ordre croissant
a) 5/2 ; 6/3 ; 1/2 ; 5/3 ; 1/1
b) 3/4 ; 7/10 ; 5/5 ; 6/4 ; 2
a) 5/2 ; 6/3 ; 1/2 ; 5/3 ; 1/1
b) 3/4 ; 7/10 ; 5/5 ; 6/4 ; 2
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Ranger ces nombres dans l'ordre croissant :a) 5/2 ; 6/3 ; 1/2 ; 5/3 ; 1/1
5/2 = 5 x 3 / 2 x 3 = 15/6
6/3 = 6 x 2 / 3 x 2 = 12/6
1/2 = 1 x 3 / 2 x 3 = 3/6
5/3 = 5 x 2 / 3 x 2 = 10/6
1/1 = 1 x 6 / 1 x 6 = 6/6
3/6 < 6/6 < 10/6 < 12/6 < 15/6
Donc :
1/2 < 1/1 < 5/3 < 6/3 < 5/2
b) 3/4 ; 7/10 ; 5/5 ; 6/4 ; 2
3/4 = 3 x 5 / 4 x 5 = 15/20
7/10 = 7 x 2 / 10 x 2 = 14/20
5/5 = 5 x 4 / 5 x 4 = 20/20
6/4 = 6 x 5 / 4 x 5 = 30/20
2 = 2 x 20 / 1 x 20 = 40/20
14/20 < 15/20 < 20/20 < 30/20 < 40/20
Donc :
7/10 < 3/4 < 5/5 < 6/4 < 2