5days 6 hours 20 minutes
- 3 days 8 hours 40 minutes

1 day, 21 hours, and 40 minutes

Step-by-step explanation: To make it less confusing, you can convert all of the days into hours (24 hours in a day)...

126 hours and 20 minutes-80 hours and 40 minutes

7580 minutes-4840 minutes=2740 minutes

We can convert 2740 minutes back into hours and days now...

1 day, 21 hours, and 40 minutes

Or

Step-by-step explanation: Or you can just subtract, start with minutes and go up from there...

20-40 would be in the negatives and time can’t be negative, so you need to borrow from the hours. So hours is now at 5 and minutes is at 20+40 which is 80. And 80-40=40

We now have...

5 days, 5 hours, and 40 minutes-3 days and 8 hours.

Now we can do the hours...

5-8 also is negative, so we need to borrow from the days. Days is now at 4. There are 24 hours in a day so 24+5=29. Now we can subtract 29-8=21

Now we have 4 days, 21 hours, and 40 minutes

And 4-3 is 1, which means we have 1 day,

21 hours, and 40 minutes as our answer!