Verified answer

Bonsoir,

1° : 2/7

2°: 2/3

3° :

1-2/7 - 2/3=

21/21 - 6/21 - 14/21 = 1/21

Aire du terrain:

630* 490  =>308 700m²

1/21 =>

308 700/21 =>14 700m²

6/21 =>

14 700 * 6 =>88 200m²

14/21 =>

14 700* 14 =>205 800