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ZentoGaming
@ZentoGaming
May 2019
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Exercice 3 :
On donne : A = 1/4+5/6 / 25/4 -1
B : 7/5-9/5*2/21
Calculer A et B. Donner Les réponses sous formes de fractions irréductible
Merci de votre aide :D
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nonotata
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Bonsoir
A = 1/4+5/6 / 25/4 -1
a = 3/12+10/12 / 25/4-4/4
a = 13/12 / 21/4
a = 13/12 x 4/21
a = 13/3 x 1/21
a = 13/63
B : 7/5-9/5*2/21
= 7/5 - 3/5x2/7
= 7/5 -6/35
= 49/35-6/35
= 43/35
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ZentoGaming
Merci beaucoup de votre aide !
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Verified answer
BonsoirA = 1/4+5/6 / 25/4 -1
a = 3/12+10/12 / 25/4-4/4
a = 13/12 / 21/4
a = 13/12 x 4/21
a = 13/3 x 1/21
a = 13/63
B : 7/5-9/5*2/21
= 7/5 - 3/5x2/7
= 7/5 -6/35
= 49/35-6/35
= 43/35