Bonjour
Calculer et donner le résultat sous la forme d'une fraction le plus simple possible :
A=1/5+3/5
A = 4/5
B=9/7+3/7
B = 12/7
C=1/3+1/6
C = (1 x 2) / (3 x 2) + 1/6
C = 2/6 + 1/6
C = 3/6
C = (3 x 1) / (3 x 2)
C = 1/2
D=4/5-3/6
D = (4 x 6) / (5 x 6) - (3 x 5) / (6 x 5)
D = 24/30 - 15/30
D = 9/30
D = (3 x 3) / (3 x 10)
D = 3/10
E=2+1/3
E = (2 x 3) / (1 x 3) + 1/3
E = 6/3 + 1/3
E = 7/3
F=2/5+1/10-3/20
D = (2 x 4) / (5 x 4) + (1 x 2) / (10 x 2) - 3/20
D = 8/20 + 2/20 - 3/20
D = 7/20.
