Sagot :
Bonjour
a. 9/7 = (9 x 6) / (7 x 6) = 54/42
57/42
Donc :
9/7 < 57/42
b. - 16/3 = (- 16 x 4) / (3 x 4) = - 48/16
- 23/4 = (- 23 x 3) / (4 x 3) = - 69/12
Donc :
- 16/3 > - 23/4
c. - 5/8 = (- 5 x 3) / (8 x 3) = - 15/24
- 19/24
Donc :
- 5/8 > - 19/24
d. - 7/5 = (- 7 x 2) / (5 x 2) = - 14/10
- 3/2 = (- 3 x 5) / (2 x 5) = - 15/10
Donc :
- 7/5 > - 3/2
e. 7/15 = (7 x 4) / (15 x 4) = 28/60
5/12 = (5 x 5) / (12 x 5) = 25/60
Donc :
7/15 > 5/12
f. 7/12 = (7 x 3) / (12 x 3) = 21/36
7/9 = (7 x 4) / (9 x 4) = 28/36.
Donc :
7/12 < 7/9