Réponse :
bonjour
noir = 3/4 + 2/4 = 5 /4
vert = 42/12 = 7/2
orange = 2/3 - 17/10 = 20/30 - 51/30 = - 21/31
blanc = 37/3 - 12/3 = 25/3
rouge = 8/20 + 3 /20 = 11 /20
orange = 22/11 - 7/11 = 15/11
vert = 12/40 + 10/40 = 2 /40 = 1 /20
noir = 260/715 = 4/11
rouge = 11/33 + 7/33 = 18/33 = 6/11
Explications étape par étape :
