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Ment1
@Ment1
May 2019
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Bonjour j’ai un DM à rendre dans quatre jours mais je n’ai rien compris donc s’il vous plaît aidez-moi car je n’ai personne pour m’aider merci de me répondre le plus vite possible.
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aymanemaysae
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Bonsoir ;
Exercice n° 1 .
a)
(3/5) + (4/15) + (7/30)
= (18/30) + (8/30) + (7/30)
= 33/30
= 11/10 .
b)
(2 + (3/7)) - ((11/21) - (3/7))
= ((14/7) + (3/7)) - ((11/21) - (9/21))
= (17/7) - (2/21)
= (51/21) - (2/21)
= 49/21
= 7/3 .
c)
(2/3) + (3/7)
= (14/21) + (9/21)
= 23/21 .
Exercice n° 2 .
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Verified answer
Bonsoir ;Exercice n° 1 .
a)
(3/5) + (4/15) + (7/30)
= (18/30) + (8/30) + (7/30)
= 33/30
= 11/10 .
b)
(2 + (3/7)) - ((11/21) - (3/7))
= ((14/7) + (3/7)) - ((11/21) - (9/21))
= (17/7) - (2/21)
= (51/21) - (2/21)
= 49/21
= 7/3 .
c)
(2/3) + (3/7)
= (14/21) + (9/21)
= 23/21 .
Exercice n° 2 .