bonjour pouvez-vous m'aider svp Calcul en détaillant A= 13/10-2/5x3/8 B= 2/3/5/6-2/5 C= 5/7-2/7*4/13 D= (3/5-1/2)x5/2 E= 3/4+3/ 1/3+2 F= 4/3+3/10/ 5/2-2/5 G=( 1

bonsoir

a = 13/10 - 6/40
a = 52/40 - 6/40
a = 46/40
a = 23//20

b = 2/3 * 6/5 - 2/5
b = 12/15 - 2/5
b = 12/15 - 6/15
b = 6/15

c = 5/7 - 8/91
c = 65/91 - 8/91
c = 57/91

d = ( 6/10 - 5/10) * 5/2
d = 1/10 * 5/2
d = 5/20 ou 1/4

e =  3/4+3/ 1/3+2  en considérant que c'est  3 : 1/3
e = 3/4 + 3 * 3 + 2
e = 3/4 + 9 + 2
e = 3/4 + 36/4 + 8/4
e = 47/4

F= 4/3+3/10/ 5/2-2/5   
F = 4.3 + 3/10 * 2/5 - 2/5
F = 4/3 + 6/50 - 2/5
F = 200/150 - 18/150 - 100/150
F = 82/150
F = 41/75

G=( 1/4-1/5)x(7+37/9)
G = ( 5/20 - 4/20) ( 63/9 + 37/9)
G = 1/20 * 100/9
G = 100/180
G = 5/9