A = 2/3 - 7/3 x 8/21 A = 2/3 - 56/63 A = 2 x 21 / 3 x 21 - 56/63 A = 42/63 - 56/63 A = 7 x 2 / 7 x - 9 A = - 2/9
B = (3/4 - 5/6) x 3/2 B = (3 x 3 / 4 x 3 - 5 x 2 / 6 x 2) x 3/2 B = (9/12 - 10/12) x 3/2 B = - 1/12 x 3/2 B = - 3/24 B = 3 x - 1 / 3 x 8 B = - 1/8
C = 11 : (2/3 - 5/2) C = 11 : (2 x 2 / 3 x 2 - 5 x 3 / 2 x 3) C = 11 : (4/6 - 15/6) C = 11 : - 11/6 C = 11 x - 6/11 C = - 66/11 C = 11 x - 6 / 11 x 1 C = - 6
D = 3/7 - 15/7 : 5/24 D = 3/7 - 15/7 x 24/5 D = 3/7 - 360/35 D = 3 x 5 / 7 x 5 - 360/35 D = 15/35 - 360/35 D = - 345/35 D = 5 x - 69 / 5 x 7 D = - 69/7
E = (11/7 - 2/5) x 24/7 E = (11 x 5 / 7 x 5 - 2 x 7 / 5 x 7) x 24/7 E = (55/35 - 14/35) x 24/7 E = 41/35 x 24/7 E = 984/245
F = 25/15 x (1/18 + 1/24) F = 25/15 x (1 x 4 / 18 x 4 + 1 x 3 / 24 x 3) F = 25/15 x (4/72 + 3/72) F = 25/15 x 7/72 F = 175/1080 F = 5 x 35 / 5 x 216 F = 35/216.
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Bonjour,A = 2/3 - 7/3 x 8/21
A = 2/3 - 56/63
A = 2 x 21 / 3 x 21 - 56/63
A = 42/63 - 56/63
A = 7 x 2 / 7 x - 9
A = - 2/9
B = (3/4 - 5/6) x 3/2
B = (3 x 3 / 4 x 3 - 5 x 2 / 6 x 2) x 3/2
B = (9/12 - 10/12) x 3/2
B = - 1/12 x 3/2
B = - 3/24
B = 3 x - 1 / 3 x 8
B = - 1/8
C = 11 : (2/3 - 5/2)
C = 11 : (2 x 2 / 3 x 2 - 5 x 3 / 2 x 3)
C = 11 : (4/6 - 15/6)
C = 11 : - 11/6
C = 11 x - 6/11
C = - 66/11
C = 11 x - 6 / 11 x 1
C = - 6
D = 3/7 - 15/7 : 5/24
D = 3/7 - 15/7 x 24/5
D = 3/7 - 360/35
D = 3 x 5 / 7 x 5 - 360/35
D = 15/35 - 360/35
D = - 345/35
D = 5 x - 69 / 5 x 7
D = - 69/7
E = (11/7 - 2/5) x 24/7
E = (11 x 5 / 7 x 5 - 2 x 7 / 5 x 7) x 24/7
E = (55/35 - 14/35) x 24/7
E = 41/35 x 24/7
E = 984/245
F = 25/15 x (1/18 + 1/24)
F = 25/15 x (1 x 4 / 18 x 4 + 1 x 3 / 24 x 3)
F = 25/15 x (4/72 + 3/72)
F = 25/15 x 7/72
F = 175/1080
F = 5 x 35 / 5 x 216
F = 35/216.