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mitchellpascal
@mitchellpascal
May 2023
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Bonjour tout le monde, je suis en 4° j'ai cet exercice à faire si on pouvait m'aider SVP MERCI
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valentinerailla
bonjour
a) 3/7 x 8/3 = 3x8 divisé par 7x3 = 24/21 = 8/7
b) on peut retirer les deux 15 —> 2/11
c) = 2/23
d) 3/22
e) 1/24
f) 2/5
1 votes
Thanks 0
xixamanga32
= 3/7 x 8/3
= 3x8/7x3
= 8/7
b.
= 2/15 x 15/11
= 2x15/15x11
= 2/11
c.
= 14/23 x 1/7
= 14x1/23x7
= 14/161
= 2/23
d.
= 2/11 x 3/4
= 2x3/11x4
= 6/44
= 3/22
e.
= 7/8 x 1/21
= 7x1/8x7x3
= 1/24
f.
= 2/3 x 3/4 x 4/5
= 2x3x4/3x4x5
= 8/20
On annule si les divisions 8/8 = 1 - 3/3 = 1 donc après on multiplie seulement les chiffres restants
1 votes
Thanks 0
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Lista de comentários
a) 3/7 x 8/3 = 3x8 divisé par 7x3 = 24/21 = 8/7
b) on peut retirer les deux 15 —> 2/11
c) = 2/23
d) 3/22
e) 1/24
f) 2/5
= 3x8/7x3
= 8/7
b.
= 2/15 x 15/11
= 2x15/15x11
= 2/11
c.
= 14/23 x 1/7
= 14x1/23x7
= 14/161
= 2/23
d.
= 2/11 x 3/4
= 2x3/11x4
= 6/44
= 3/22
e.
= 7/8 x 1/21
= 7x1/8x7x3
= 1/24
f.
= 2/3 x 3/4 x 4/5
= 2x3x4/3x4x5
= 8/20
On annule si les divisions 8/8 = 1 - 3/3 = 1 donc après on multiplie seulement les chiffres restants