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Last updated on August 5, 2025

90 minutes as a Decimal

Professor Greenline Explaining Math Concepts

Understanding how to convert time to decimals is a simple yet important skill. Time is often measured in hours, minutes, and seconds. In some contexts, such as calculations for payroll or project management, it's useful to express time as a decimal. Here, we'll focus on converting 90 minutes into a decimal format. A decimal separates the whole number part from the fraction part using a decimal point. The numbers to the left of the decimal point represent the whole hour, and those to the right represent the fractional part of the hour.

90 minutes as a Decimal for US Students
Professor Greenline from BrightChamps

What is 90 minutes as a decimal?

90 minutes as a decimal

 

 

Answer

90 minutes as a decimal is 1.5. This indicates that 90 minutes is equivalent to 1 and a half hours.

 

Explanation

To convert 90 minutes to a decimal, we divide the number of minutes by 60, since there are 60 minutes in an hour. Here's the step-by-step breakdown of the process:

 

Step 1: Identify the total minutes, which is 90 in this case.

 

Step 2: Divide the total minutes by 60 to convert minutes into hours.

 

Step 3: 90 ÷ 60 = 1.5 Step 4: The result, 1.5, represents 1 whole hour and 0.5 of another hour.

 

Thus, 90 minutes is equal to 1.5 hours in decimal form.

Professor Greenline from BrightChamps

Important Glossaries for 90 minutes as a decimal

  • Minutes: A unit of time equal to one sixtieth of an hour.

 

  • Decimal: A numeric system that uses a decimal point to separate the whole number from the fractional part.

 

  • Hour: A unit of time equal to 60 minutes.

 

  • Conversion: The process of changing from one form or unit to another.

 

  • Fractional Part: The part of a decimal number that comes after the decimal point, representing a portion of a whole.
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