1.1 1/2+2/3+3/4 2.2 1/2+2 1/4+3/5 3.3 1/4+2 1/2+5/6 4.3 3/4-3 1/10 5.5 3/4-2 1/8-1 1/2

1. 1 1/2+2/3 +3/4
3/2+2/3+3/4
16/12+8/12+9/12
33/12=11/4

2. 5/2+9/4+3/5
50/20+45/20+12/20
107/20

3. 13/4+5/2+5/6
39/12+30/12+10/12
79/12

4. 15/4-31/10
75/20-62/20
13/20

5. 23/4-17/8-3/2
92/16-34/16-24/16
34/16=17/8