1. Convert Stone to Pounds:

* 1 stone = 14 pounds

* 9 stone = 9 * 14 pounds = 126 pounds

2. Add the Remaining Pounds:

* Total pounds = 126 pounds + 9.75 pounds = 135.75 pounds

3. Convert Pounds to Kilograms:

* 1 pound = 0.453592 kilograms

* 135.75 pounds = 135.75 * 0.453592 kilograms = 61.58 kilograms (approximately)

Therefore, 9 stone 9.75 pounds is approximately equal to 61.58 kilograms.