bonjour

A = ( 2/3 - 22/33 ) ²

A = ( 2/3 - 2/3 )²

A = 0

B =  ( 2/5 - 21/35) + 1

B = (  14/35 - 21/35)  + 1

B = -  7/35 + 35/35 =  28/35  = 4/5

C = AB

C = 0 *4/5 = 0

D = ( 1 + 1/2 - 5/2) x 120/60

d =  ( 2/2 + 1/2 - 5/2) x 2

d = -  2/2 x 2 = - 4/2 = -  2

E = ( A - B) x (C + D)

E = ( 0 - 4/5) x ( 0 - 2 )

E = - 4/5 * - 2 = 8/5

F = 1 + 1/2 + 1 /3

F = 6/6 + 3/6 + 2/6 = 11/6

G = F + 1/F

G = 11/6 + ( 1 : 11/6)

G = 11/6 + ( 1 x 6/11)

G = 11/6 + 6/11

G = 66/66 + 36/66 = 102/66= 17/11

H = je ne lis pas la barre de dessous : 1/15 ou 7/15 ?

bonjour,

et le H : 1/3-2/15 sur 1/2-3/10

1/3 - 2/15 = 5/15 - 2/15 = 3/15 = 1/5 au numérateur

et

1/2 - 3/10 = 5/10-3/10 = 2/10 = 1/5 au dénominateur

et 1/5 / 1/5 = 1

:)