i need help checking my answers...

1. 9/10 - 3/10= 6/10
2. - 7/20 - ( - 3/20) = 4/20
3. 1/2 +1/4= 2/8
4. 3/8 - (-1/4)= 2/32
5. - 3/40 - ( - 2/10 )- 1/400
6. 7/30 + 9/20 =16/600
7. - 7/30 - (-1/25) =
8. 4/9 + 3/7 = 7/63
9. - 2/9 - ( - 2/3 )=

The blank ones im not sure

Question

i need help checking my answers...

1. 9/10 - 3/10= 6/10
2. - 7/20 - ( - 3/20) = 4/20
3. 1/2 +1/4= 2/8
4. 3/8 - (-1/4)= 2/32
5. - 3/40 - ( - 2/10 )- 1/400
6. 7/30 + 9/20 =16/600
7. - 7/30 - (-1/25) = 
8. 4/9 + 3/7 = 7/63 
9. - 2/9 - ( - 2/3 )= 

The blank ones im not sure

anonymous · Answer

1. 6/10
2. - 4/20
3.  3/4
4. 5/8
5.  3/40

hellomynameiskam · Answer

@ilovecrayons what about 6,7,8,9?

anonymous · Answer

6. 41/60
7. - 29/150
8.  55/63
9. 4/9

anonymous · Answer

hope that helped!

hellomynameiskam · Answer

thanks!!!!!!

anonymous · Answer

np