Réponses

Meilleure réponse !
  • Utilisateur Brainly
2014-03-16T17:53:02+01:00
1) 5/8 + (-3/4) : (-9/16)
=5/8+3/4*16/9
=5/8+(3*4*4)/(4*3*3)
=5/8+4/3
=15/24+32/24
=47/24

2) 6/5 - (-1/9) x (-3/4)

=6/5-1/9*3/4
=6/5-3/(3*3*4)
=6/5-1/12
=72/60-5/60
=67/60
2014-03-16T17:55:09+01:00
La 1 = =47/24

la 2 je n'arrive pas non plus :/