Sagot :
A=7/9-4/9*3/8 = 7/9 - 12/72 = 56/72 - 12/72 = 44/72 = 11/18 en divisant par 4
voili voilou
Salut
A = 7/9-4/9x3/8
A = 7/9 - 12/72
A = 56/72 - 12/72
A = 44/72
PGCD(44;72) = 4
44/4 = 11
72/4 = 18
donc A= 11/18
A=7/9-4/9*3/8 = 7/9 - 12/72 = 56/72 - 12/72 = 44/72 = 11/18 en divisant par 4
voili voilou
Salut
A = 7/9-4/9x3/8
A = 7/9 - 12/72
A = 56/72 - 12/72
A = 44/72
PGCD(44;72) = 4
44/4 = 11
72/4 = 18
donc A= 11/18