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Joooliew
@Joooliew
May 2019
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Bonjour a tous je voudrais que vous m'aidiez pour mon exercices de maths merci en avance :calculer les expressions suivantes et donner les résultats sous forme de fraction irréductible ou d'entier x=3/4 -2/3*15/8 y=6/5 - 7/14 :5/7 z=(5/2 - 7/4):3/8
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Bonjour
x = 3/4 - 2/3 * 15/8
= 3/4 - 30/24
= 18/24 - 30/24 = - 12/24 =
- 1/2
y = 6/5 - 7/14 : 5/7
= 6/5 - 7/14 x 7/5
= 6/5 - 49/70
= 84/70 - 49/70 = 35/70 =
1/2
z = ( 5/2 - 7/4) : 3/8
= ( 10/4 - 7/4) : 3/8
= 3/4 x 8/3 = 24/12 =
2
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joooliew
MERCI BEAUCOUP
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x = 3/4 - 2/3 * 15/8
= 3/4 - 30/24
= 18/24 - 30/24 = - 12/24 = - 1/2
y = 6/5 - 7/14 : 5/7
= 6/5 - 7/14 x 7/5
= 6/5 - 49/70
= 84/70 - 49/70 = 35/70 = 1/2
z = ( 5/2 - 7/4) : 3/8
= ( 10/4 - 7/4) : 3/8
= 3/4 x 8/3 = 24/12 = 2