A = 5/6 - (23/18 - 8/9) A = 5/6 - (23/18 - 8 x 2 / 9 x 2) A = 5/6 - (23/18 - 16/18) A = - 5 x 3 / 6 x 3 - 7/18 A = - 15/18 - 7/18 A = - 22/18 A = 2 x - 11 / 2 x 9 A = - 11/9
B = (25/3 - 11/6) - (5/3- 2/3) B = (25 x 2 / 3 x 2 - 11/6) - (5 x 2 / 3 x 2 - 2 x 2 / 3 x 2) B = (50/6 - 11/6) - (10/6 - 4/6) B = 39/6 - 6/6 B = 33/6 B = 3 x 11 / 3 x 2 B = 11/2
C = 11/6 - 17/12 + 2/3 C = 11 x 2 / 6 x 2 - 17/12 + 2 x 4 / 3 x 4 C = 22/12 - 17/12 + 8/12 C = 13/12
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Bonjour,A = 5/6 - (23/18 - 8/9)
A = 5/6 - (23/18 - 8 x 2 / 9 x 2)
A = 5/6 - (23/18 - 16/18)
A = - 5 x 3 / 6 x 3 - 7/18
A = - 15/18 - 7/18
A = - 22/18
A = 2 x - 11 / 2 x 9
A = - 11/9
B = (25/3 - 11/6) - (5/3- 2/3)
B = (25 x 2 / 3 x 2 - 11/6) - (5 x 2 / 3 x 2 - 2 x 2 / 3 x 2)
B = (50/6 - 11/6) - (10/6 - 4/6)
B = 39/6 - 6/6
B = 33/6
B = 3 x 11 / 3 x 2
B = 11/2
C = 11/6 - 17/12 + 2/3
C = 11 x 2 / 6 x 2 - 17/12 + 2 x 4 / 3 x 4
C = 22/12 - 17/12 + 8/12
C = 13/12