Réponse :
Bonjour,
a) [tex]4*\frac{-12}{7} / \frac{3}{14}[/tex] = [tex]\frac{-48/7}{3/14}[/tex]= [tex]\frac{-48}{7}[/tex] * [tex]\frac{14}{3} = \frac{-672}{21} = -32[/tex]
b) [tex]\frac{6-(-5)+1}{(-8)/2} = \frac{6+5+1}{(-8)/2} = \frac{12}{(-8)/2} = 12 *\frac{2}{-8} = \frac{24}{-8} = -3[/tex]
