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Sagot :

Bonjour,

a)

1° personne 3/7

il reste:

7/7 -3/7 = 4/7

2° personne:

2/3 de 4/7

(2*4)/(3*7) = 8/21

b)

1° + 2° personne:

3/7 + 8/21 = 9/21 + 8/21 = 17/21

3° personne:

21/21 - 17/21 = 4/21

superficie de chaque parcelle:

21/21 = 14 700 m²

1/21 = 14 700/21 => 700m²

1° personne: 9* 700 =>6 300m²

2° personne: 8* 700 => 5 600m²

3° personne: 4* 700=> 2 800m²

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