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Invonnito
@Invonnito
May 2019
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Svp les deux exercices c'est vite fait Svp svp
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blondinetteoceane88
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Bonsoir
Exercice 18
a)1/4 = 5/20 car on multiplie le haut et bas par 5 quand on réduit 5/20 on obtient 1/4
b)2/5 = 12/30 c'est tj pareil la on multiplie par 6 car 30/5=6
c)30/70=3/7
d)14/40=7/20
e)9/8=81/72
f)8=80/10
Exercice 19
a)1/3=15/45
b)1/3=5/15
c)9/7=18/14
d)3/10=30/100
e)18/15=6/5
f)40/32=5/4
1 votes
Thanks 1
Invonnito
Merci beaucoup mais comment savoir avec quel nombre on le multiplie
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Verified answer
BonsoirExercice 18
a)1/4 = 5/20 car on multiplie le haut et bas par 5 quand on réduit 5/20 on obtient 1/4
b)2/5 = 12/30 c'est tj pareil la on multiplie par 6 car 30/5=6
c)30/70=3/7
d)14/40=7/20
e)9/8=81/72
f)8=80/10
Exercice 19
a)1/3=15/45
b)1/3=5/15
c)9/7=18/14
d)3/10=30/100
e)18/15=6/5
f)40/32=5/4