Bonjour j’ai un devoirs de maths je dois calculer a) 1 /2 + 7/5 et b) 8/7 - 7/12
Voilà merci de répondre au plus vite

By: USER4155
27 Agustus 2025 mathematiques 5 minutes
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Grade: Education Subject: mathematiques
Bonjour j’ai un devoirs de maths je dois calculer a) 1 /2 + 7/5 et b) 8/7 - 7/12
Voilà merci de répondre au plus vite
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Best Answer
(76)

Réponse:

a) 1/2+7/5=19/10; b) 8/7-7/12=47/84

Answered on 27 Agustus 2025
(223)

Réponse :

Explications étape par étape :

a) 1 /2 + 7/5

1*5/2*5+7*2/5*2=5/10+14/10=19/10

b) 8/7 - 7/12

8*12/7*12+7*7/12*7=96/84-49/84=47/84

Answered on 27 Agustus 2025

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salut
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CE DEVOIR EST POUR DEMAIN
MER

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