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TheTigerRoaa
@TheTigerRoaa
January 2021
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Bonjour, 19pts
Il faut que je calcule et donner le resultat sous la forme d'une fraction simplifiée.
TheTigerRoaa, merci beaucoup :33
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pancrinol
Verified answer
Bonsoir.
Rappel.
Pour diviser une fraction par une fraction, on multiplie la première fraction par la seconde renversée.
A ) ( 3/5 ) / ( 7/11 ) = 3/5 x 11/7 = 33/35.
B ) ( - 1/7 ) / ( 7/ - 8 ) = - 1/7 x - 8/7 = 8/49.
C ) ( - 6/13 ) / 39/ -12 ) = - 6/13 x - 12/39 = 72/507 = 24/169.
J'espère avoir pu t'aider.
1 votes
Thanks 0
TheTigerRoaa
Merci beaucoup !!!
loulakar
Verified answer
Bonsoir,
A = 3/5 x 11/7
A = (3 x 11)/(5 x 7)
A = 33/35
B = -1/7 x -8/7
B = (-1 x -8)/(7 x 7)
B = 8/49
C = -6/13 x -12/39
C = (-6 x -12)/(13 x 39)
C = (2 x 3 x 12)/(13 x 3 x 13)
C = (2 x 12)/(13 x 13)
C = 24/169
0 votes
Thanks 0
TheTigerRoaa
Merci aussi !!<3
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Lista de comentários
Verified answer
Bonsoir.Rappel.
Pour diviser une fraction par une fraction, on multiplie la première fraction par la seconde renversée.
A ) ( 3/5 ) / ( 7/11 ) = 3/5 x 11/7 = 33/35.
B ) ( - 1/7 ) / ( 7/ - 8 ) = - 1/7 x - 8/7 = 8/49.
C ) ( - 6/13 ) / 39/ -12 ) = - 6/13 x - 12/39 = 72/507 = 24/169.
J'espère avoir pu t'aider.
Verified answer
Bonsoir,A = 3/5 x 11/7
A = (3 x 11)/(5 x 7)
A = 33/35
B = -1/7 x -8/7
B = (-1 x -8)/(7 x 7)
B = 8/49
C = -6/13 x -12/39
C = (-6 x -12)/(13 x 39)
C = (2 x 3 x 12)/(13 x 3 x 13)
C = (2 x 12)/(13 x 13)
C = 24/169