Sagot :
Bonjour
B = - 13/15 - 11/20
B = (- 13 x 4) / (15 x 4) - (11 x 3) / (20 x 3)
B = - 52/60 - 33/60
B = - 85/60
B = (5 x - 17) / (5 x 12)
B = - 17/12.
Bonjour
B = - 13/15 - 11/20
B = (- 13 x 4) / (15 x 4) - (11 x 3) / (20 x 3)
B = - 52/60 - 33/60
B = - 85/60
B = (5 x - 17) / (5 x 12)
B = - 17/12.