# Subtracting Mixed Time

Steps to subtract days and hours:

1. If the number of hours being subtracted is more, then decrease the days by 1 and increase the hours by 24.

(Since, 1 day = 24 hours)

2. Subtract the days.

3. Subtract the hours.

**For example:** Let's subtract:

39 days 21 hours – 15 days 23 hours = ?

Notice that, we cannot subtract 23 hours from 21 hours.

So, decrease the days by 1 and increase the hours by 24:

39 days – 1 day = **38 days**

21 hours + 24 hours = **45 hours**

So, 39 days 21 hours – 15 days 23 hours = **38 days 45 hours – 15 days 23 hours**

Now, subtract the days.

38 days – 15 days = **23 days**

Now, subtract the hours.

45 hours – 23 hours = **22 hours**

So, **39 days 21 hours – 15 days 23 hours = 23 days 22 hours.**

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### Help

The correct answer is

##### Remember :

The smallest number is the one that comes first while counting.

##### Solution :

To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.

21,27,23

21 is the smallest number.