bonjour qui peut m aider merci d avance​

Bonjour,

a. 2+1/4=2+0,25=2,25 ou 2+1/4=8/4+1/4=9/4

b. 7-2/3=21/3-2/3=19/3

c. 1,6+8/9=14,4/9+8/9=22,4/9

d. 3-25/3=9/3-25/3=-16/3

Bonjour,

a. 2 + 1/4

= (2 x 4) / (1 x 4) + 1/4

= 8/4 + 1/4

= 9/4.

b. 7 - 2/3

= (7 x 3) / (1 x 3) - 2/3

= 21/3 - 2/3

= 19/3.

c. 1,6 + 8/9

= (1,6 x 9) / (1 x 9) + 8/9

= 14,4/9 + 8/9

= 22,4/9.

d. 3 - 25/3

= (3 x 3) / (1 x 3) - 25/3

= 9/3 - 25/3

= - 16/3