Question

How to convert 1 hour 20 minutes 45 seconds into hours?

Answer 1

Answer:

1

Step-by-step explanation:

1 hour = 60min

1 min = 1/60 hour

20 min = 20 /60 = 1/3 hour

1 min = 60 sec

1 sec =1/3600 hour

45 sec = 45 /3600

= 0.0125hour

= 1 + 1/3 + 1/80

= 323/240 hour