pourriez-vous m aider svp ? ​

Bonsoir,

A=

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

7/7 + 8/4 =

1+ 2 = 3

B=

5/12 + 23/12 -5/3 -2/3=

28/12 - 7/3 =

28/12 - 28/12 = 0

C=

4+  3,2 + 9= 16,2

D=

7/10 + 0,25 + 3 +3=

0,7 + 6,25 = 6,95

Bonjour !

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

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

A = (4 + 2 + 1) / 7 + (3 + 5) / 4

A = 7/7 + 8/4

A = 1 + 2

A = 3

B = 5/12 - 5/3 + 23/12 - 2/3

B = 5/12 + 23/12 - 5/3 - 2/3

B = (5 + 23) / 12 + (-5 - 2) / 3

B = 28/12 - 7/3

B = 28/12 - (7*4)/(3*4)

B = 28/12 - 28/12

B = 0

C = 44/11 + 32/10 + 63/7

C = 4 + 3,2 + 9

C = 16,2

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

D = (7*2)/(10*2) + (1*5)/(4*5) + 3 - 3

D = 14/20 + 5/20 + 0

D = (14 + 5) / 20

D = 19/20

J’espère t'avoir aidé. Bon courage !