Question

(2,8+0,3+$\frac{1}{15}$) : 3

Answer 1

2,8= 2 intregi 8/10= 2 intregi 4/5= 14/5
0,3= 3/10

(14/5 +3/10 +1/15 ) :3  aducem la acelasi numitor in paranteza
(84+9+2)/30 :3=
=95/30 :3
=19/6 * 1/3
=19/18