1.
Calculate: 2/3 + 2/6
2.
Calculate: 17/100 + 3/50
3.
Calculate: 1/7 + 1/2
4.
Simplify: 6/8 + 3/2
5.
Simplify: 14/40 + 4/20
6.
Calculate: 7/10 - 2/5
7.
Calculate: 2/6 - 1/3
8.
Calculate: 30/50 - 14/25
9.
Calculate: 1/100 - 1/1000
10.
Calculate: 1/5 - 13/100