bonjour pouvez vous m'aider Svp

Bonjour,

A = -2/3 + 7/4
A = (-2 * 4)/(3 * 4) + (7 * 3)/(4 * 3)
A = -8/12 + 21/12
A = 13/12

B = -5/6 - 1/18
B = (-5 * 3)/(6 * 3) - 1/18
B = -15/18 - 1/18
B = -16/18
B = -8/9

C = 2/9 * (-6/5)
C = -12/45
C = -4/15

D = -7/3 ÷ 6/5
D = -7/3 * 5/6
D = -35/18

E = 2 + 7/6 - 7/24 + 1/8
E = 2/1 + 7/6 - 7/24 + 1/8
E = 48/24 + 28/24 - 7/24 + 3/24
E = 72/24
E = 3/1 = 3

F = 7/8 - 3/8 * 11/3 + 7/6 ÷ (-4)
F = 7/8 - 33/24 + 7/6 * (-1/4)
F = 21/24 - 33/24 - 7/24
F = ...

G = (1 + 2/3)/(4/5 - 7/15)
G = (3/3 + 2/3)/(12/15 - 7/15)
G = 5/3 ÷ 5/15
G = 5/3 * 15/5
G = (5 * 3 * 5)/(3 * 5)
G = 5/1 = ...

Bonne journee