Bonjour
Calculer en détaillant les étapes et en donnant le résultat sous la forme d'une fraction simplifiée au maximum.
A =5/6-1/3
A = 5/6 - (1 x 2) / (3 x 2)
A = 5/6 - 2/6
A = 3/6
A = (3 x 1) / (3 x 2)
A = 1/2
B=-3/4+7/24
B = (- 3 x 6) / (4 x 6) + 7/24
B = - 18/24 + 7/24
B = - 11/24
C =-8/45-2/5
C = 8/45 - (2 x 9) / (5 x 9)
C = 8/45 - 18/45
B = - 10/45
B = (5 x - 2) / (5 x 9)
B = - 2/9
D=9/14-5
D = 9/14 - (5 x 14) / (1 x 14)
D = 9/14 - 70/14
D = - 61/14
E =1/6-17/30+4/5
E = (1 x 5) / (6 x 5) - 17/30 + (4 x 6) / (5 x 6)
E = 5/30 - 17/30 + 24/30
E = 12/30
E = (6 x 2) / (6 x 5)
E = 2/5
F =21/25-3/5
F = 21/25 - (3 x 5) / (5 x 5)
F = 21/25 - 15/25
F = 6/25.