Bonjour,
Calculer en détaillant les étapes.donner le résultat sous la forme d'une fraction la plus simple
A= 6/2+1
A = 6/2 + (1 x 2) / (1 x 2)
A = 6/2 + 2/2
A = 8/2
A = (2 x 4) / (2 x 1)
A = 4
B= 3/4+10
B = 3/4 + (10 x 4) / (1 x 4)
B = 3/4 + 40/4
B = 43/4
C= 2/70+9/7
C = 2/70 + (9 x 10) / (7 x 10)
C = 2/70 + 90/70
C = 92/70
C = (2 x 46) / (2 x 35)
C = 46/35
D= 20/7+8/7
D = 28/7
E= 2/9+1
E = 2/9 + (1 x 9) / (1 x 9)
E = 2/9 + 9/9
E = 11/9
F= 3-5/10
F = (3 x 10) / (1 x 10) - 5/10
F = 30/10 - 5/10
F = 25/10
E = (2 x 5) / (5 x 2)
F = 5/2
G= 9/6+1/2
G = (3 x 3) / (3 x 2) + 1/2
G = 3/2 + 1/2
G = 4/2
G = (2 x 2) / (2 x 1)
G = 2.
H= 9/8-7/56
H = (9 x 7) / (8 x 7) - 7/56
H = 63/56 - 7/56
H = 56/56
H = 1.