Répondre :
D= 11: ( 4/6 - 15/6)
D= 11 :( -11/6 )
D= 11 x (-6/11)
D= -6
C= ( 4/3 - 1 ) : ( 7/6 - 2 )
C = (4/3 - 3/3) : ( 7/6 - 6/6 )
C= 1/3 : 1/6
C= 1/3 x 6/1
C= 6/3
C = 2
D= 11: ( 4/6 - 15/6)
D= 11 :( -11/6 )
D= 11 x (-6/11)
D= -6
C= ( 4/3 - 1 ) : ( 7/6 - 2 )
C = (4/3 - 3/3) : ( 7/6 - 6/6 )
C= 1/3 : 1/6
C= 1/3 x 6/1
C= 6/3
C = 2