Réponse :
Explications étape par étape
Bonsoir
Calculer et donner le résultat sous forme de fracrions simplifiés:
A=3/4+2/6
A = (3 x 3)/(4 x 3) + (2 x 2)/(6 x 2)
A = 9/12 + 4/12
A = 13/12
B=2/15+3/20
B = (2 x 4)/(15 x 4) + (3 x 3)/(20 x 3)
B = 8/60 + 9/60
B = 17/60
C=9/8+5/12
C = (9 x 3)/(8 x 3) + (5 x 2)/(12 x 2)
C = 27/24 + 10/24
C = 37/24
D=15/66-10/44
D = (15 x 4)/(66 x 4) - (10 x 6)/(44 x 6)
D = 60/264 - 60/264
D = 0
E=3/5- -3/4
E = 3/5 + 3/4
E = (3 x 4)/(5 x 4) + (3 x 5)/(4 x 5)
E = 12/20 + 15/20
E = 27/20
