help please 50 points

Answer:
1. 10/21
2. 4/16 Lowest Term: 4
3. 9/40
4. 10/63
5. 30/132
6. 8/35
7. 10/132
8. 20/27
9. 8/30
10. 20/44
Answer:
1) 10/21
2) 1/4
3) 9/40
4) 10/63
5) 5/22
6) 8/35
7) 5/66
8) 20/27
9) 4/15
10) 5/11
im not sure but hope it helps