Answer :
1. 2+3 5/6+2/3 add equal 1 2/3
the final answer=6 2/3
2. 11/8=1 3/8 ;1+3. 3/8+2/3=1 1/24
6 1/24
3. 3-2. 5/7-1/3=8/21
1 8/21
4. 5-2. 7/8-1/6=17/24
3 17/24
the final answer=6 2/3
2. 11/8=1 3/8 ;1+3. 3/8+2/3=1 1/24
6 1/24
3. 3-2. 5/7-1/3=8/21
1 8/21
4. 5-2. 7/8-1/6=17/24
3 17/24