Find the sum.
1. 1/3+1/5=
2. 1/8+2/6=
3. 8/9+11/12=
4. 1/7+5/8=
5. 1/4+2/4=
6. 1/2+3/9=
7. 1/10+1/4=
8. $3/11+11/12=
