Bonjour,
Ecrire les expressions suivantes sous forme fractionnaire la plus simple possible :
B= (3 - 4 × 2/3) - 1/12
B = (3 - 8/3) - 1/12
B = [(3 x 12) / (1 x 12) - (8 x 4) / (3 x 4)] - 1/12
B = (36/12 - 32/12) - 1/12
B = 4/12 - 1/12
B = 3/12
B = (3 x 1) / (3 x 4)
B = 1/4.
C = 6 -2 x 5/4
C = 6 - 10/4
C = (6 x 2) / (1 x 2) - (2 x 5) / (2 x 2)
C = 12/2 - 5/2
C = 7/2
D= 15 /8 +5/3 x 3 /4
D = 15/8 + 15/12
D = (15 x 6) / (8 x 6) + (15 x 4) / (12 x 4)
D = 90/48 + 60/48
D = 150/48
D = (6 x 25) / (6 x 8)
D = 25/8.
