Réponse :
Bonjour,
109+12 = 121
3*4 = 12
5*3 = 15
-6 + 18 = 12
Donc :
(121)/(12 - 1) + (15-12) - (6+56/8)+14 =
121/11 + 3 +14 - ((6*8)/(1*8)) + 56/8) =
121/11 +17 - 48+56/8 = 121/11 + 17 - 104/8
= 121*8 / 11*8 - (104*11) / (8*11) + 17
= (968 - 1144)/88 + 17*88 / 88
= -176/88 + 1496/88
= 1320 / 88 = 15