1)-0.2+1/6+(-8 целых 1/15) 2) 6,7+(2 целых 1/3-9 целых 2/5)

Question

1)-0.2+1/6+(-8 целых 1/15) 2) 6,7+(2 целых 1/3-9 целых 2/5)

Answer 1

1)-0.2+1/6+(-8 целых 1/15) =-1/5+1/6-

8 1/15=-6/30+5/30-8 2/30=-8 1/10

2) 6,7+(2 целых 1/3-9 целых 2/5)=

6 7/10+2 1/3-9 2/5=6 21/30+2 10/30-

9 12/30=-11/30