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Astriddu85
@Astriddu85
January 2021
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Coucou ! Classe de 4°
Demain j'ai une SPEED Ce que je comprends pas c'est les fractions :
3 sur 7 + 5 sur 28 pouvez vous m'expliquer Svp..
Et puis la prportionalité je ne comprends pas non plus Merci d'avance de m'aider !!
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maudmarine
Verified answer
Bonsoir,
3/7 + 5/28
Tu mets tous sous le même dénominateur soit 28
3 x 4 / 7 x 4 + 5/28
= 12/28 + 5/28
= 17/28
2 votes
Thanks 1
Astriddu85
Merci !
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Verified answer
Bonsoir,3/7 + 5/28
Tu mets tous sous le même dénominateur soit 28
3 x 4 / 7 x 4 + 5/28
= 12/28 + 5/28
= 17/28