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Lesson 1: Converting units of time

# Converting units: minutes to hours

Learn how to convert minutes to hours by dividing the minutes by 60. We demonstrate dividing 549 minutes by 60, resulting in 9.15 hours. The video also shows how to express the answer as a mixed number (9 and 3/20). Created by Sal Khan.

## Want to join the conversation?

• At he has the answer 9 hours at the top, and the remainder is 9 minutes at the bottom. Why didn't he just stop right there and say the answer is "9 hours 9 minutes"?
• Because as explained, 60 cannot evenly go into 549. And if you cannot have a remainder then you write your answer as a decimal.
• When we say 9.15 hours, 0.15 is not 15 minutes right?
Rather it's it's a fraction of an hour as a decimal?
• You are correct! the .15 is actually 9 minutes.

Nine hours and fifteen minutes would actually be written 9.25 hours because the fifteen minutes is a quarter of an hour. (0.25)
• I am still not sure how you convert seconds into minutes.
• divide by 60 because there are 60 seconds in a minute if you are converting minutes to seconds multiply by 60
• Why won't the videos mark as done in my assignments tab?
• Are you doing course mastery instead of that? I would check
• were did you even get those 00 from someone help
• 549 is equal to 549.00 (they are the same number). He just added 2 blank decimal places.
• how do you convert hour to minutes
• You just need to remember that there are 60 minutes in every hour. Two hours would be 60 minutes x 2 = 120 minutes.

2.5 hours would be 60 minutes x 2.5 = 150 minutes.
• I am not understanding clearly
• I am not sure how you change seconds to minutes
• Converting seconds to minutes involves a straightforward calculation.

There's a fundamental unit conversion to grasp: one minute is equivalent to 60 seconds. This ratio forms the cornerstone of our conversion process.

To transform seconds into minutes, you'll need to perform a division operation. Take the total number of seconds you wish to convert and divide it by 60. The resulting quotient represents the number of minutes. Any remainder will signify the remaining seconds.

Here's a practical example:

If you have 120 seconds, dividing by 60 yields 2 minutes.
For 185 seconds, you'd get 3 minutes with a remainder of 5 seconds.
Essentially, you're determining how many 60-second intervals fit within the given number of seconds. This process is akin to distributing seconds into minute-sized containers.

By understanding this core concept, you can efficiently convert seconds to minutes in various scenarios, from timing events to analyzing data.
(1 vote)
• Does this help me find out what time on my military hour clock is? My little irish brain can't figure it out. Somebody help me.
• A military clock is like 0200 or 1900 right? If so it is just like a normal clock that goes to 2359/. Its just a modern clock without the ":".
(1 vote)
• what do you mean by that

i need help