Bonjour,

a.2,1×5/7= 1,5

b.4,9×5/7 = 3,5

c.12,6×5/7​ = 9

Verified answer

Réponse :

A= 2,1×5/7

= 10,5: 7

=3/2      fraction irreductible

= 1,5

B=4,9x5/7

=24,5 : 7

= 7/2.    fraction irreductible

=3,5

C=12,6x5/7

=63/7

=9