Sagot :
Bonsoir
-7/6 : 3/4
= -7/6 x 4/3
= -7/3 x 4/6
= -7/3 x (2 x 2)/(2 x 3)
= -7/3 x 2/3
= (-7 x 2)/(3 x 3)
= -14/9
3/8 : -3/4
= 3/8 x -4/3
= -4/8 x 3/3
= -4/(2 x 4) x 1
= -1/2
-5/9 : -8/3
= -5/9 x -3/8
= 3/9 x 5/8
= 3/(3 x 3) x 5/8
= 1/3 x 5/8
= 5/24
Exercice 51 :
1/5 : (-3)
= 1/5 x -1/3
= -1/15
3/8 : (-6)
= 3/8 x (-1/6)
= -3/6 x 1/8
= -3/(2 x 3) x 1/8
= -1/2 x 1/8
= -1/16
-15/8 : 5
= -15/8 x 1/5
= -15/5 x 1/8
= (-5 x 3)/5 x 1/8
= -3 x 1/8
= -3/8
Réponse:
c'est simple, il te suffit de garder la première division, puis changer la Division en multiplication en inversant nominateur et dénominateur.
ex 1 -7/6 x 4/3