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Bonsoir !!
K = 1/(-8) + 5/4 + (-7)/6
K = -3/24 + 30/24 - 28/24
K = (-3 + 30 - 28)/24
K = -1/24
N = (-3)/10 + (-9)/8 + 7/5 + 3/2
N = (-3 × 8)/(10 × 8) + (-9 × 10)/(8 × 10) + (7 × 16)/(5 × 16) + (3 ×40)/(2 × 40)
N = (-24 - 90 + 112 + 120)/80
N = 118/80 = 59/40
L = 1 + (-15)/7 + (-3)/(-5)
L = 1 + (-15)/7 + 3/5
L = [(1 × 35) + (-15 × 5) + (3 × 7)]/35
L = (35 - 75 + 21)/35
L = -19/35
P = -11 + 1/11 + 1/6 + 6
P = -726/66 + 6/66 + 11/66 + 369/66
P = -346/66
M = -2 + 5/6 - 23/10 - 3/(-5)
M = [(-2 × 60) + (5 × 10) + (-23 × 6) + (3 × 12)]/60
M = (-120 + 50 - 138 + 36)/60
M = -172/60
R = 2/3 - (-7)/4 - 1/5
R = [(2 × 4 × 5) + (7 × 3 × 5) + (-1 × 4 × 3)]/60
R = (40 + 105 - 12)/60
R = 133/60
K = 1/(-8) + 5/4 + (-7)/6
K = -3/24 + 30/24 - 28/24
K = (-3 + 30 - 28)/24
K = -1/24
N = (-3)/10 + (-9)/8 + 7/5 + 3/2
N = (-3 × 8)/(10 × 8) + (-9 × 10)/(8 × 10) + (7 × 16)/(5 × 16) + (3 ×40)/(2 × 40)
N = (-24 - 90 + 112 + 120)/80
N = 118/80 = 59/40
L = 1 + (-15)/7 + (-3)/(-5)
L = 1 + (-15)/7 + 3/5
L = [(1 × 35) + (-15 × 5) + (3 × 7)]/35
L = (35 - 75 + 21)/35
L = -19/35
P = -11 + 1/11 + 1/6 + 6
P = -726/66 + 6/66 + 11/66 + 369/66
P = -346/66
M = -2 + 5/6 - 23/10 - 3/(-5)
M = [(-2 × 60) + (5 × 10) + (-23 × 6) + (3 × 12)]/60
M = (-120 + 50 - 138 + 36)/60
M = -172/60
R = 2/3 - (-7)/4 - 1/5
R = [(2 × 4 × 5) + (7 × 3 × 5) + (-1 × 4 × 3)]/60
R = (40 + 105 - 12)/60
R = 133/60
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