How to read 7.75 hours
Keep the 7. Multiply 0.75 by 60: 45 minutes. 7.25 is 7:15. 7.50 is 7:30. 7.75 is 7:45.
Is 7.75 the same as 7 hours 75 minutes? No. That would be 7 + 75/60 = 8.25 hours.
What is 7.5 hours in hours and minutes? 7:30. Open that page.
What is 8.75 hours in hours and minutes? 8:45.