Sagot :
A = 5/12 + 3/-4/-5/-4
= 5/12 + 3/-4 * -5/-4
= 5/12 + -15/16
= 5*16/192 - 15*12/192
= (80-180) / 192 = -100 / 192 = 65/48 = -25/48
D = 6*2 - 4*5 / 18/9
= 12 - 20/2
= 12 - 10
= 2
bonjour, pouvez- vous m'aider sur ce calcule
calculer : A =5/12+3/-4/-5/-4 et D = 6x2-4x5/18:9
A = 5/12 + 3/-4/-5/-4
= 5/12 + 3/-4 * -5/-4
= 5/12 + -15/16
= 5*16/192 - 15*12/192
= (80-180) / 192 = -100 / 192 = 65/48 = -25/48
D = 6*2 - 4*5 / 18/9
= 12 - 20/2
= 12 - 10
= 2