Réponse :
Exercice 8)
a.
2/3 = 2*4/3*4 = 8/12
or 8/12 < 9/12
donc 2/3 < 9/12
b.
6/9 = 6*4/9*4 = 24/36
or 24.2/36 > 24/36
donc 24.2/36 > 6/9
c.
1/5 = 1*5/5*5 = 5/25
or 5/25 > 4/25
donc 1/5 > 4/25
d.
3/1 = 3*7/1*7 = 21/7
or 31/7 > 19/7
donc 3 > 19/7
Exercice 9)
a. <
b. >
c. >
d. <
e. >
f. >
g. <
h. <
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Réponse :
Exercice 8)
a.
2/3 = 2*4/3*4 = 8/12
or 8/12 < 9/12
donc 2/3 < 9/12
b.
6/9 = 6*4/9*4 = 24/36
or 24.2/36 > 24/36
donc 24.2/36 > 6/9
c.
1/5 = 1*5/5*5 = 5/25
or 5/25 > 4/25
donc 1/5 > 4/25
d.
3/1 = 3*7/1*7 = 21/7
or 31/7 > 19/7
donc 3 > 19/7
Exercice 9)
a. <
b. >
c. >
d. <
e. >
f. >
g. <
h. <