Réponses

2014-09-03T19:34:53+02:00
A)
2/3 + 1/8
= 2 x 8 / 3 x 8 + 1 x 3 / 8 x 3
= 16/24 + 3/24
= 19/24
2014-09-03T19:41:28+02:00