Punctele A si B va rog

Răspuns:
Explicație pas cu pas:
a)(12/2+11/3-7/6)/100×120/17=(36+22-7)/100×120/17=51/100×120/17=6/10=
=3/5 raspuns: C
b)
(3/5×1/6+1/2×6/5)×8/11×10=(1/10+6/10)×80/11=7/10×8/11×10=56/11=5 1/11
raspuns:D