Bonjour pouvais vous m'aidez pour cet exercice scp merci a celui qui m'aide.

Bonjour ;

A = 1/3 + 5/6

= (1 x 2)/(3 x 2) + 5/6

= 2/6 + 5/6

= (2 + 5)/6

= 7/6 .

B = 2/3 x 1/4

= (2 x 1)/(3 x 4)

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

= 1/(3 x 2)

= 1/6 .

C = 1/5 - 2/3

= (1 x 3)/(5 x 3) - (2 x 5)/(3 x 5)

= 3/15 - 10/15

= (3 - 10)/15

= (- 7)/15

= - 7/15 .

D = 3 x 1/4

= 3/1 x 1/4

= (3 x 1)/(1 x 4)

= 3/4 .

E = 2/6 + 1/3 x (- 3)/4

= (2 x 2)/(2 x 6) - 1/3 x 3/4

= 4/12 - (1 x 3)/(3 x 4)

= 4/12 - 3/12

= (4 - 3)/12

= 1/12 .