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Last updated on March 4th, 2025

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400 as a decimal

Professor Greenline Explaining Math Concepts
Foundation
Intermediate
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Understanding decimal representation is straightforward. A decimal represents a number using a base ten system, which includes a decimal point to distinguish the whole part from the fractional part. In this context, though, we are discussing whole numbers like 400, which can be directly represented as a decimal without any fractional component. The decimal point is followed by zero, indicating there is no fractional part.

Professor Greenline from BrightChamps

What is 400 as a decimal?

400 as a decimal

Answer

 

400 as a decimal is written as 400.0. It is a terminating decimal, meaning it does not repeat infinitely.

 

Explanation

 

To express 400 as a decimal, we simply place a decimal point followed by a zero, indicating that there are no fractional parts:

 

Step 1: Identify the whole number, which is 400.

 

Step 2: As there are no fractional components, append ".0" to the whole number.

 

Step 3: The result is 400.0, a terminating decimal.

Professor Greenline from BrightChamps

Important Glossaries for 400 as a decimal

  • Whole Number: A number without any fractional or decimal component.
     
  • Decimal: A number expressed using the base ten, including a decimal point to separate the whole number from any fractional part.
     
  • Terminating Decimal: A decimal number that has a finite number of digits after the decimal point.
     
  • Decimal Point: The dot used in decimal numbers to separate the whole part from the fractional part.
     
  • Fractional Part: The part of a decimal number that comes after the decimal point, representing a portion of a whole.
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