Unit conversion: minutes to hours | Measurement and data | 5th grade | Khan Academy

TL;DR

Divide 549 minutes by 60 to convert it to hours, resulting in 9.15 hours or 9 hours and 15 minutes.

Transcript

How many hours are in 549 minutes? And we can write it as a decimal or a fraction. So essentially, we're going to take 549 minutes and divide them into groups of 60. Why 60? Because we know that one hour is equal to 60 minutes. So it's essentially saying, how many groups of 60 minutes can we divide 549 into. Or another way of thinking about that is... Read More

Key Insights

• ⌛ One hour is equal to 60 minutes.
• ⌛ To convert minutes to hours, divide by 60.
• ⌛ Dividing 549 minutes by 60 results in 9.15 hours.
• 😑 The remaining minutes can be expressed as a fraction of an hour.
• ❓ The decimal and fractional representation of the answer are equivalent.
• ⌛ Understanding the relationship between minutes and hours is essential for conversion.
• 🗂️ The remainder after dividing by 60 represents the additional minutes.

Questions & Answers

Q: How do you convert 549 minutes to hours?

To convert minutes to hours, divide the number of minutes by 60. In this case, 549 divided by 60 equals 9.15 hours.

Q: Can you explain the decimal and fractional representation of the answer?

The decimal representation of 9.15 hours means that there are 9 full hours and an additional 0.15 or 15% of an hour remaining. The fractional representation, 9 and 3/20 or 9 and 15/100, means the same thing.

Q: What is the significance of using 60 in the calculation?

There are 60 minutes in one hour, which is why the division is done by 60. By dividing the total minutes by 60, we find the number of times 60 can fit into the given minutes, which gives us the equivalent hours.

Q: What if there is a remainder after dividing by 60?

If there is a remainder after dividing, it means there are additional minutes left over. In this case, after dividing 549 by 60, there are 9 hours and 9 minutes remaining.

Summary & Key Takeaways

• To convert 549 minutes to hours, divide it by 60.

• The calculation shows that 549 minutes is equivalent to 9 hours and 9 minutes.

• This can also be written as 9 and 3/20 hours or 9 and 15/100 hours.