Bonjour pouvez vous m'aidez svp ? Merci ​

Bonjour !

a. 1/2 + 1/4 = (2*1)/(2*2) + 1/4 = 2/4 + 1/4 = (2 + 1)/4 = 3/4

b. 5/6 + 5/12 = (5*2)/(6*2) + 5/12 = 10/12 + 5/12 = (10 + 5)/12 = 15/12 = 5/4

c. 13/14 + 5/7 = 13/14 + (5*2)/(7*2) = 13/14 + 10/14 = (13 + 10)/14 = 23/14

d. 3/4 + 5/24 = (3*6)/(4*6) + 5/24 = 18/24 + 5/24 = (18 + 5)/24 = 23/24

J'espère t'avoir aidé. Bon courage !

Réponse :

a. 1/2 + 1/4 = (2*1)/(2*2) + 1/4 = 2/4 + 1/4 = (2 + 1)/4 = 3/4

b. 5/6 + 5/12 = (5*2)/(6*2) + 5/12 = 10/12 + 5/12 = (10 + 5)/12 = 15/12 = 5/4

c. 13/14 + 5/7 = 13/14 + (5*2)/(7*2) = 13/14 + 10/14 = (13 + 10)/14 = 23/14

d. 3/4 + 5/24 = (3*6)/(4*6) + 5/24 = 18/24 + 5/24 = (18 + 5)/24 = 23/24

voily voilou