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Last updated on March 3rd, 2025

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18 as a Decimal

Professor Greenline Explaining Math Concepts
Foundation
Intermediate
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It is a simple question on decimal representation. Firstly, we have to understand numbers and decimals. A whole number represents a complete quantity. A decimal is a way to represent numbers that include fractions of a whole, using a (.) or a decimal point to separate the whole part from the fractional part. The numbers to the left of the decimal point represent the whole, and those to the right represent the fractional part.

Professor Greenline from BrightChamps

What is 18 as a decimal?

18 as a decimal

 

Answer

18 as a decimal is simply written as 18.0. This is because 18 is a whole number and does not have any fractional part.

 

Explanation

To express 18 as a decimal, we recognize that it is already a whole number. If we want to emphasize that it has no fractional part, we can write it as 18.0.

 

 

Step 1: Identify the whole number, which in this case is 18.

 

Step 2: Since there is no fractional part to consider, the decimal representation remains 18.0. There are no further steps needed, as 18 is a terminating decimal.

Professor Greenline from BrightChamps

Important Glossaries for 18 as a decimal

  • Whole Number: A number without fractions; an integer.

 

  • Decimal: A number that uses the base ten and includes a decimal point to separate the whole part from the fractional part.

 

  • Terminating Decimal: A decimal that ends and does not repeat infinitely.

 

  • Fractional Part: The portion of a number that is to the right of the decimal point.

 

  • Decimal Point: The dot used to separate the whole number from the fractional part in a decimal number.
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