Réponses

  • Utilisateur Brainly
2014-06-03T20:01:57+02:00
2+ \frac{1}{2} = \frac{4}{2} + \frac{1}{2} = \frac{5}{2}

1- \frac{1}{8} = \frac{8}{8} - \frac{1}{8}  = \frac{7}{8}

1+ \frac{3}{5} = \frac{5}{5} + \frac{3}{5} = \frac{8}{5}

2+ \frac{2}{3} = \frac{6}{3} + \frac{2}{3} = \frac{8}{3}
Merci beaucoup , ces super et très rapide, merci
Je t'en prie !
2014-06-03T20:08:22+02:00
2 + 1/2
= 2 x 2 / 1 x 2 + 1/2
= 4/2 + 1/2
= 5/2

1 - 1/8
= 1 x 8 / 1 x 8 - 1/8
= 8/8 - 1/8
= 7/8

1 + 3/5
= 1 x 5 / 1 x 5 + 3/5
= 5/5 + 3/5
= 8/5

2 + 2/3
=
2 x 3 / 1 x 3 + 2/3
= 6/3 + 2/3
= 8/3