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maureendu59
@maureendu59
June 2021
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Calculer en montrant les étapes intermédiaires, et donner le résultat sous forme d'une fraction irréductible.
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winner123
Verified answer
Bonjour
A = 0,4 x 10⁻¹⁰⁺⁹ = 0,4 x 10⁻¹
B = (11/3 -7) : 25/6
B = (11/3 - 21/3) : 25/6
B = - 10/3 x 6/25 = - 60/75 = - 4/5
C = 3/7 - 30/20
C = 3/7 - 3/2
C = 6/14 - 21/14 = - 15/14
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Verified answer
BonjourA = 0,4 x 10⁻¹⁰⁺⁹ = 0,4 x 10⁻¹
B = (11/3 -7) : 25/6
B = (11/3 - 21/3) : 25/6
B = - 10/3 x 6/25 = - 60/75 = - 4/5
C = 3/7 - 30/20
C = 3/7 - 3/2
C = 6/14 - 21/14 = - 15/14