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filisand
@filisand
January 2021
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Bonjour
Pouvez vous m'aider je suis en 6eme
La fraction cachée :
Trouver une fraction égale à deux tiers dans la Somme du numérateur et du dénominateur soit égal à 35
Merci c'est pour demain
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trudelmichel
Verified answer
A/b=2/3
3a=2b
b=3a/2
a+b=35
a+3a/2=35
2a/2+3a/2=35
5a/2=35
a= (35 x2) :5
a= 70 :5
a= 14
a+b=35
14+b=35
b=35-14
b=21
14/21
14=2x7 21=3x7 14/21= 2/3
2 votes
Thanks 1
hmben59650
2/3 = 2 fois 7 , 3 fois 7 = 14/21
14+ 21 = 35
( / = la barre de fraction )
1 votes
Thanks 1
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Verified answer
A/b=2/33a=2b
b=3a/2
a+b=35
a+3a/2=35
2a/2+3a/2=35
5a/2=35
a= (35 x2) :5
a= 70 :5
a= 14
a+b=35
14+b=35
b=35-14
b=21
14/21
14=2x7 21=3x7 14/21= 2/3
14+ 21 = 35
( / = la barre de fraction )