Répondre :
bonjour;
1/1/2+4- 0/5 - 1/2 + 4 - 11/11 + 5-1
4+4+5-1 +1/2 -0/5 -11/11
= 12 +1/2 -0/5-1
= 11 +1/2 -0/5
= 11 +1/2
= 11/*2/2 +1/2
22/2 +1/2
= 23/2
bonjour;
1/1/2+4- 0/5 - 1/2 + 4 - 11/11 + 5-1
4+4+5-1 +1/2 -0/5 -11/11
= 12 +1/2 -0/5-1
= 11 +1/2 -0/5
= 11 +1/2
= 11/*2/2 +1/2
22/2 +1/2
= 23/2