Réponses

  • Utilisateur Brainly
2013-06-09T17:17:00+02:00

a. 42 sur 56

=42/56

=(3*14)/(4*14)

=3/4

 

b. 56 sur 60

=56/60

=(14*4)/(15*4)

=14/15

 

c. 60 sur 42

=60/42

=(6*10)/(6*7)

=10/7