Réponses

  • Utilisateur Brainly
2014-09-11T19:06:29+02:00
1/9 - 15/9 x 1/6
= 1/9 - (15 * 1)/(9 * 6)
= (1 * 6)/(9 * 6) - 15/54
= 6/54 - 15/54
= - 9/54
= - 1/6
2014-09-11T19:06:56+02:00
A =1 / 9 - 15 / 9 × 1 / 6
= 1 / 9 - 15 / 54
= 6 / 54 - 15 / 54
= -9 / 54
= - 1 / 6