44/11+32/10+63/7 7/10+1/4+39/13-75/25 3/4+5/7+2/3+1/4+2/7+1/3 merci de m'aider à calculer svp

Réponse :

Explications étape par étape

Bonsoir

44/11+32/10+63/7

= (11 x 4)/11 + (16 x 2)/(5 x 2) + (9 x 7)/7

= 4 + 16/5 + 9

= 13 + 16/5

= 65/5 + 16/5

= 81/5

7/10+1/4+39/13-75/25

= 7/10 + 1/4 + (3 x 13)/13 - (25 x 3)/25

= 7/10 + 1/4 + 3 - 3

= 28/40 + 10/40

= 38/40

= 19/20

3/4+5/7+2/3+1/4+2/7+1/3

= 3/4 + 1/4 + 5/7 + 2/7 + 2/3 + 1/3

= 4/4 + 7/7 + 3/3

= 1 + 1 + 1

= 3