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lisadu62
@lisadu62
January 2021
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pourriez vous m'aider pour cet exercice s.v.p
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luwan
Verified answer
Il faut ramener les fractions au meme dénominateur
* signifie multiplier
a) x*2 / 4*2 + x/8
= 2x / 8 + x/8
= 3x / 8
b) x*7/3*7 + x/21 + x*3/7*3
= 7x/21 + x/21 + 3x/21
=11x/21
0 votes
Thanks 1
lisadu62
merci pour ton aide
luwan
de rien
lisadu62
Tu est en quelle classe sinon ?
luwan
j ai mon bac depuis 3 ans
lisadu62
ok
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Verified answer
Il faut ramener les fractions au meme dénominateur* signifie multiplier
a) x*2 / 4*2 + x/8
= 2x / 8 + x/8
= 3x / 8
b) x*7/3*7 + x/21 + x*3/7*3
= 7x/21 + x/21 + 3x/21
=11x/21