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Sniperjojo
@Sniperjojo
April 2019
2
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Lise a mangé le tiers d une tablette de chocolats.
Agathe a mangé les trois quarts du reste .
Quelle fraction de la tablette de chocolat reste-t-il ? Justifier la réponse par un (ou plusieurs) calcul(s).
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nathalienouts
Verified answer
Après Lise il reste 2/3
2/3x3/4 = 2/4 = 1/2 mangé par Agathe
il reste 1-(1/3+1/2) = 1-(2/6+3/6) = 1-5/6 = 6/6-5/6 = 1/6
1 votes
Thanks 4
Juulien
Verified answer
Lise mange 1/3 de la tablette, il reste donc 1 - 1/3 = 2/3 de la tablette.
Agathe mange les 3/4 du reste, donc 3/4 de 2/3 :
(3/4) x (2/3) = 6/12 = 1/2
Il reste donc 1 - 1/3 - 1/2 = 1 - 2/6 - 3/6 = 1 - 5/6 = 1/6
Il reste
1/6
de la tablette.
1 votes
Thanks 3
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Combien fait : 3 x 2
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Lista de comentários
Verified answer
Après Lise il reste 2/32/3x3/4 = 2/4 = 1/2 mangé par Agathe
il reste 1-(1/3+1/2) = 1-(2/6+3/6) = 1-5/6 = 6/6-5/6 = 1/6
Verified answer
Lise mange 1/3 de la tablette, il reste donc 1 - 1/3 = 2/3 de la tablette.Agathe mange les 3/4 du reste, donc 3/4 de 2/3 :
(3/4) x (2/3) = 6/12 = 1/2
Il reste donc 1 - 1/3 - 1/2 = 1 - 2/6 - 3/6 = 1 - 5/6 = 1/6
Il reste 1/6 de la tablette.