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Q: What are positive and negative numbers but have no decimal or fractional portion?

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They are called positive integers or whole numbers

No. Positive numbers can be whole numbers but they can also be decimal numbers and fractions. If a value is a whole number, it does not have a fraction or decimal part and it is not negative. Whole numbers are also called natural numbers or counting numbers.

Yes, real numbers include both positive and negative numbers. They also include whole numbers and fractional numbers, as well as irrational numbers (numbers that can't be expressed as the ratio of two whole numbers).

The purpose is to separate whole numbers from fractional parts of whole numbers.

Real numbers include fractional and decimal numbers. So the closest-to-zero positive real number would be 0.00000000...001; that is, an an infinite number of zeros between the decimal and the 1.

Related questions

They are called positive integers or whole numbers

Positive numbers are greater than negative numbers. Decimals can be either positive or negative.

Any number, negative or positive, can be expressed as a decimal number. So a negative number can always be expressed as a negative decimal.

It is always positive, and not just for decimal numbers but for all numbers.

-- Ignore the signs temporarily. -- Divide the numbers. -- The quotient is negative.

There are no such numbers since all integers are also decimal numbers. A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point or any digits after a decimal point.

I assume you mean "integers". That means whole numbers, that is, numbers without a decimal point or fractional part. They can be positive, negative, or zero. Examples include 0, 1, 2, 100, -5, etc.

Subtracting two positive fractional numbers, or adding one positive and one negative integer.

Yes, EXCEPT for the number 0. It is a whole number but is not positive or negative. Real Numbers - Everything I. Rational Numbers- Any number except for non terminating decimals A. Integers- Any negative or positive number...not a decimal1. Whole Numbers- Any positive integer INCLUDING ZEROa. Natural Numbers- Any positive integer (NOT INCLUDING ZERO) The answer is not entirely correct, Whole numbers are numbers without a fractional part or decimal point. Therefore whole numbers can be negative as well as positive. -2 is a whole number but is not positive. There are a number of different interpretations for whole numbers, from non-negative integers, positive integers and all integers (which includes negative integers)

It separates the place values with positive power of ten from those with negative powers of ten. In other words, it separates the whole part of numbers from their fractional parts.

Yes. Integers are the set of numbers defined by {…, -2, -1, 0, 1, 2, …}. All positive and negative numbers with no fractional part, as well as 0, are included.

They are the decimal fractional part.

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