svp je vous demande trop mais c'est important et je vous donne 20 point (ps mon devoir est noté.... Pergunta de ideia delinsou65

January 2023 2 19 Report

svp je vous demande trop mais c'est important et je vous donne 20 point (ps mon devoir est noté

fubuki Bjr,
1a.5/9 b.15/8 c.5/6 d.77/48
2a.12/8 b.15/14 c.1/36 d.7/40
3a.45/8 b.71/8 c.1/2 d.14/9
J’espère qu’il n’y a pas de fautes.

1 votes Thanks 1

elisabelle944735

Verified answer

Exercice 14:
a) 7/18 + 1x3/6x3 = 7/18 + 3/18 = 10/18 = 5/9
b) 21x4/10x4 - 9/40 = 84/40 - 9/40 = 75/40 = 15/8
c) 14/60 + 9x4/15x4 = 14/60 + 36/60 = 5/6
d) 7x6/8x6 + 35/48 = 42/48 + 35/48 = 77/48

Exercice 15:
a) 27/28 + 3x7/4x7 = 27/28 + 21/28 = 12/7
b) 25x3/14x3 - 30/42 = 75/42 - 30/42 = 45/42 = 15/14
c) 25/36 - 2x12/3x12 = 25/36 - 24/36 = 1/36
d) 39/40 - 4x8/5x8 = 39/40 - 32/40 = 7/40

Exercice 16:
a) 13/8 + 4x8/1x8 = 13/8 + 32/8 = 45/8
b) 10x8/1x8 - 9/8 = 80/8 - 9/8 = 71/8
c) 11/2 - 5x2/1x2 = 11/2 - 10/2 = 1/2
d) 5/9 + 1x9/1x9 = 5/9 + 9/9 = 14/9

2 votes Thanks 1

linsou65 merci t'est le bosse