Réponse :
Explications étape par étape
Bonjour
Recopier et compléter :
-5/... = .../30 = 45/... = 10/-12 = -15/...
10/-12 = -(2 x 5)/(2 x 6) = -5/6
-5/6 = (-5 x 5)/(6 x 5) = -25/30
-5/6 = (-5 x -9)/(6 x -9) = 45/-54
-5/6 = (-5 x 3)/(6 x 3) = -15/18
-5/6 = -25/30 = 45/-54 = 10/-12 = -15/18
6) recopier et compléter :
a) -28/35 = (-4 x 7)/(5 x 7) = -4/5
b) 40/48 = (8 x 5)/(8 x 6) = 5/6
c) -63/-49 = (9 x -7)/(7 x -7) = 9/7
