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massi59100
@massi59100
January 2021
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Bonjour j'ai besoin de votre aide svp
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swnn
Verified answer
A. -9/5 + 6/5 = (-9+6)/5 = -3/5
b. 11/9 - 5/9 = (11-5)/9 = 6/9 = 2/3
c. -7/8 + 5/8 = (-7+5)/8 = -2/8 = -1/4
d. 19/20 - 7/20 - (-3)/20
= 19/20 - 7/20 + 3/20
= 15/20
= 3/4
2 votes
Thanks 1
massi59100
bjr
massi59100
merci pour quelle exercice?
swnn
le 3
massi59100
ok merci
massi59100
tu peut me dire comment as tu fait sa?
massi59100
le 2 tu peut m'aider stp?$
swnn
j’ai simplement mis les fractions sur le même dénominateur puis j’ai fais un calcul simple
quand il y’a possibilité de simplifier je l’ai fait
Vulk1
merci beaucoup
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Verified answer
A. -9/5 + 6/5 = (-9+6)/5 = -3/5b. 11/9 - 5/9 = (11-5)/9 = 6/9 = 2/3
c. -7/8 + 5/8 = (-7+5)/8 = -2/8 = -1/4
d. 19/20 - 7/20 - (-3)/20
= 19/20 - 7/20 + 3/20
= 15/20
= 3/4
quand il y’a possibilité de simplifier je l’ai fait