1. Original title =2 5/6 +(- 1 again1/3)+(-1/2)+(-3/8)

= 1+(- 3/8) =5/8

2. Original title = (-8 3/7)+(-7.5)+(-214/7)+(+31/2)

=(-8 3/7) +(-2 1 4/7) ++(-7.5)+(+ 3 1/2)

=30-4=26

3. Original title = (-23/4)+(+125/7)+(-4.125)+(+0.75)+(+18)

=(-2 3/4) +(+0.75)+(-4. 125)+(+ 1/8) +(+ 12 5/7)

=-2-4+(+ 12 and 5/7)

=6 and 5/7