Réponses

  • Utilisateur Brainly
2013-11-24T16:50:03+01:00

A: 17/12 - 5/3 
÷ 6/13
=17/12-5/3x13/6
=17/12-65/18
=51/36-130/36
=-79/36

B: (17/12 - 5/3) 
÷ 6/13

=(17/12-20/12)x13/6
=-3/12x13/6
=-39/72
=-13/24