1. 201,554,856 is correct! 2. 1010.16 is correct! 3. 6 2/5 is the correct answer. You need to simplify! 4. The LCM is 12, not 2, sorry! 5. 23/42 is correct! 6. 10/17 is correct! 7.I think the answer should be 0.2024 8. 3/8 is correct! 9. 8 1/5 is correct!