Réponse:
Exercice 52:
a) -3|6/5
= -3 ÷ 6/5
= -3 × 5/6
= -5/2
b) -3/6|5
= -3/6 ÷ 5
= -3/6 × 1/5
= -3/30
= -1/10
c) -7/5|6+1/5
= -7/5|30/5+1/5
= -7/5|31/5
= -7/31. on simplifie avec 5.
Exercice 53 :
a) 2/9|-5/3
= 2/9 ÷ -5/3
= 2/9 × -3/5
= -2/15
b) 3/5|1/5
= 3/5 ÷ 1/5
= 3/5 × 5
= 3. on simplifie par 5.
c) -1/4|3
= -1/4 ÷ 3
= -1/4 × 1/3
= -1/12
d) 22/7|-11
= 22/7 × -1/11
= -2/7
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Réponse:
Exercice 52:
a) -3|6/5
= -3 ÷ 6/5
= -3 × 5/6
= -5/2
b) -3/6|5
= -3/6 ÷ 5
= -3/6 × 1/5
= -3/30
= -1/10
c) -7/5|6+1/5
= -7/5|30/5+1/5
= -7/5|31/5
= -7/31. on simplifie avec 5.
Exercice 53 :
a) 2/9|-5/3
= 2/9 ÷ -5/3
= 2/9 × -3/5
= -2/15
b) 3/5|1/5
= 3/5 ÷ 1/5
= 3/5 × 5
= 3. on simplifie par 5.
c) -1/4|3
= -1/4 ÷ 3
= -1/4 × 1/3
= -1/12
d) 22/7|-11
= 22/7 × -1/11
= -2/7