Answered

voici l'exercice :
1/2 / (3- 5/2)-(2- 2/3)

Sagot :

1/2 / (3- 5/2)-(2- 2/3)
=1/2/(6/2-5/2)-(6/3-2/3)
=1/2/(1/2)-4/3
=1-4/3
=3/3-4/3
=-1/3
1/2 : (3-5/2)-(2-2/3)
1/2 : (6/2-5/2)-(6/3-2/3)
1/2 : 1/2-4/3
1-4/3
3/3-4/3
-1/3