AIDEZ-MOI S’IL VOUS PLAÎT, MATHS NIVEAUX 5ème
7 Calculer.
A = 5/8 + 7/8 = ?
B = 7/10 - 5/10 = ?
C = 9/12 - 3/12 = ?
D = 4/11 + 5/11 = ?
E = 7/12 + 6/12 = ?
F = 7/9 - 4/9 = ?
8 Calculer.
G = 13/4 - 7/4 = ?
H = 9/5 + 6/5 = ?
I = 10/7 + 11/7 = ?
J = 9/6 - 5/6 = ?
K = 13/8 + 9/8 = ?
L = 17/10 - 8/10 = ?
7 Calculer.
A = 5/8 + 7/8 = ?
B = 7/10 - 5/10 = ?
C = 9/12 - 3/12 = ?
D = 4/11 + 5/11 = ?
E = 7/12 + 6/12 = ?
F = 7/9 - 4/9 = ?
8 Calculer.
G = 13/4 - 7/4 = ?
H = 9/5 + 6/5 = ?
I = 10/7 + 11/7 = ?
J = 9/6 - 5/6 = ?
K = 13/8 + 9/8 = ?
L = 17/10 - 8/10 = ?
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Réponse :
bonjour
Explications étape par étape :
7 Calculer.
A = 5/8 + 7/8 = 12/8=3/2
B = 7/10 - 5/10 = 2/10=1/5
C = 9/12 - 3/12 = 6/12=1/2
D = 4/11 + 5/11 = 9/11
E = 7/12 + 6/12 = 13/12
F = 7/9 - 4/9 = 3/9=1/3
8 Calculer.
G = 13/4 - 7/4 = 6/4=3/2
H = 9/5 + 6/5 = 15/5=3
I = 10/7 + 11/7 = 21/7=3
J = 9/6 - 5/6 = 4/6=2/3
K = 13/8 + 9/8 = 22/8=11/4
L = 17/10 - 8/10 = 9/10
Réponse:
A = 3/2
B = 1/5
C = 1/2
D = 9/11
E = 13/12
F = 1/3
G = 3/2
H = 3
I = 3
J = 2/3
K = 11/4
L = 9/10