To answer this question, you need to find the Highest Common Factor (HCF).
Let’s start with 81:108. The highest number that can go into both of them is 27. So we can simplify this ration into:
3:4
Now for 98:63. The highest number that can go into both of them is 7. This can therefore be simplified into:
14:9
Now onto 33:121. The highest common factor here is 11. Therefore It simplifies into:
3:11
Finally for 30:45. The HCF is 15. Therefore this simplifies to:
2:3
I hope this has been explained well, please mark as brainliest if you think it deserves it.
Thanks and have a great day :)
