Question

Efectuati (+8/15)-(9/10)+(+5/6)+(-4/5)............(-2/3 )+(+11/12)+(-7/8)+(+1/6)..........(+4/9)+(-5/6)+ (+3/4)+(-7/18)...........(-8/21)+(-5/7)+(+17/24)+(+9/14).

Answer 1

8/15-0.9+5/6+(-0.8)=
8/15-0.9+5/6-0.8=
16+25/30-1.7=
41/30-17/10=
41-51/30=
-10/30
-1/3