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Ffllaavviinneep015km
@Ffllaavviinneep015km
May 2019
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Bonjour,
Je dois faire un DM pour lundi mais je ne comprends pas cet exercice. Pouvez-vous m’aider s’il vous plaît ?
On pose B= 2/3-4/3x5/2 et
C= 5+(1+1/8):3/4
Calculer B et C en faisant apparaître les différentes étapes de calcul et donner les résultats sous formes de fractions simplifiées.
Merci beaucoup.
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Verified answer
Bonjour
B = 2/3 - 4/3 * 5/2
B = 2/3 - 20/6
B = 4/6 - 20/6 = - 16/6 =
- 8/3
C = 5 + ( 1 + 1/8) : 3/4
C = 5 + ( 8/8 + 1/8) : 3/4
C = 5 + ( 9/8 : 3/4)
C = 5 + 9/8 * 4/3
C = 5 + 36/24
C = 120/24 + 36/24
C = 156/24 =
13/2
0 votes
Thanks 1
MonsieurFirdown
Verified answer
Bonjour
♧ On a :
B = 2/3 - 4/3 × 5/2
B = 2/3 - (4/3 × 5/2)
B = 2/3 - 20/6
B = 4/3 - 20/6
B = - 16/6 = - 8/3
C = 5 + (1 + 1/8) : 3/4
C = 5 + 9/8 : 3/4
C = 5 + ( 9/8 × 4/3)
C = 5 + ( 36/24)
C = 5 + 3/2
C = 13/2
Voilà ^^
1 votes
Thanks 1
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Verified answer
BonjourB = 2/3 - 4/3 * 5/2
B = 2/3 - 20/6
B = 4/6 - 20/6 = - 16/6 = - 8/3
C = 5 + ( 1 + 1/8) : 3/4
C = 5 + ( 8/8 + 1/8) : 3/4
C = 5 + ( 9/8 : 3/4)
C = 5 + 9/8 * 4/3
C = 5 + 36/24
C = 120/24 + 36/24
C = 156/24 = 13/2
Verified answer
Bonjour♧ On a :
B = 2/3 - 4/3 × 5/2
B = 2/3 - (4/3 × 5/2)
B = 2/3 - 20/6
B = 4/3 - 20/6
B = - 16/6 = - 8/3
C = 5 + (1 + 1/8) : 3/4
C = 5 + 9/8 : 3/4
C = 5 + ( 9/8 × 4/3)
C = 5 + ( 36/24)
C = 5 + 3/2
C = 13/2
Voilà ^^