bonjour a tous j'aimerais avoir un coup de main C=(4/5-11/3)x25/43 D=-2/5:3/15+2/15 MERCI

Bonjour,

C = ( 4/5 - 11/3 ) x 25/43

C = (12/15 - 55/15) x 25/43

C = (-43/15) x 25/43

C = -43/43 x 25/15

C = -25/15

C = -5/3

D= -2/5 : 3/15 + 2/15

D = -2/5 x 15/3 + 2/15

D = -2/5 x 5 + 2/15

D = -2 x 5/5 + 2/15

D = -2 + 2/15

D = -30/15 + 2/15

D = -28/15

Bonjour,

(4/5 - 11/3) * 25/43 =

(12/15 - 55/15) * 25/43 =

-43/15 * 25/43 =

(-43 * 25)/(15 * 43) =

-1075/645 = à simplifier

-2/5 * 15/3 + 2/15 =

-30/15 + 2/15 =

-28/15