niveau 4ème aidez moi svp N° 6: Simplifier les fractions suivantes: A = 16 x (-5) x 6 —————— 4 x 20 x (-3) B= 22 x 3 x 26 —————— 13 x (-11) x 9

Bonjour

Simplifier les fractions suivantes:

A = [16 x (-5) x 6]/[4 x 20 x (-3)]

A = [4 x 4 x (-5) x 6] / [4 x 5 x 4 x (-3)]

A = (-6)/(-3)

A = (2 x 3)/3

A = 2

B= [22 x 3 x 26]/[13 x (-11) x 9]

B = [11 x 2 x 3 x 2 x 13] / [13 x (-11) x 3 x 3]

B = (13 x 11 x 3 x 2 x 2) / (13 x 11 x 3 x (-3))

B = (2 x 2) / (-3)

B = -4/3