Question

1) 14+(-25)+(-4)+(+15)= 2) -3,9+(+1,2)+(-6,1) +(+2,8)=
3) -7/12+(+1/8)+(-5/12)+(+3/4)=

Answer 1

14-25-4+15=0
-3.9+1.2-6.1+2.8=-6