Round the fraction to the nearest 1/2.

1. 1/9.
1. 0
2.1/2
3. 1

2. 14/27
1. 0
2. 1/2
3. 1

Estimate the sum or difference
3. 4/5+ 18/20
1. 1
2. 1 1/2
3. 2
4. 16/ 17 + 3/17
1. 19
2. 18
3.17