Bonjour pouvez vous m’aider svp

Bonjour,

S=

-15/28 * 42/-25 = -630/ -700= 63/70 = 9/10 ( c'est bien le signe +)

T =

64/44 * 55/-72 = 3 520/-3 168 =1760/ -1584= 880/-792= 440/-396=

220/-198 = 110/ -99 = 10/- 9

U=

12 * 16/45 = 192/45= 64/15

v = -48 *21/32 = -1008 / 32 = -504/ 16 = -252/8 = -126/4 = -63/2

w =

(7/12)* (18/5) = 126/60

-5/12 = -25 /60

126/60 - 25/60 = 101/60

x=

-1/24 +2/24= 1/24

-3/8 -1 = -3/8 - 8/8 = -11/8

1/24  * 8/-11 = 8/- 264 = 1/ -33