№1

1. 6+(-95)=-89

2. 16+(-79)=-63

3. 12+(-832)=-820

4. -278+(-722)=-444

5. 579+(-772)=-193

6. -69+(-29)=-98

7. 61+(-28)=33

8. -45+(-96)=-141

№2

1. -5/12+(-3/4)=-14/12=-7/6

2. -7/15+2/3=3/15=1/5

3. -11/12+13/15=-3/60=-1/20

4. 1 5/8-6=35/8

5. -7 3/4-7 3/4=-15,5

6. -8 4/7-(-2 1/7)=-6 3/7

7. -5 3/8-(-5 3/8)=0

8. 2-5 4/7=-25/7