(2/3+1/2-3/4):25/240⇒(8+6-9)/12*240/25⇒6/12*240/25⇒24
11/3-2/3*[7/2-3/4*(5/11-1/33)]⇒11/3-2/3*[7/2-3/4*(15-1)/33]⇒
11/3-2/3*(7/2-3/4*14/33)⇒11/3-2/3*(7/2-7/22)⇒11/3-2/3*(77-7)/22⇒
11/3-2/3*70/22⇒11/3-70/33⇒(121-70)33⇒51/33⇒17/11
dc esti atent poti sa l faci pe ultimul dupa ce exersezi cu primele dou
nu inteleg daca este 2 intregi si 1/3 sau 21/3