Bonsoir
ranger ces fractions dans l’ordre croissant :
3/4 ; 3/12 ; 5/3 ; 1/7 ; 1/2
3/4 = (3 x 3 x 7)/(4 x 3 x 7)
3/4 = 63/84
3/12 = (3 x 7)/(12 x 7)
3/12 = 21/84
5/3 = (5 x 4 x 7)/(3 x 4 x 7)
5/3 = 140/84
1/7 = (1 x 12)/(7 x 12)
1/7 = 12/84
1/2 = (1 x 42)/(2 x 42)
= 42/84
12/84 < 21/84 < 42/84 < 63/84 < 140/84
Soit :
1/7 < 3/12 < 1/2 < 3/4 < 5/3
