- Is 2.5 a rational number?
- Is 19 a rational number?
- Is 1.4 a rational number?
- What kind of number is 0?
- Why is the number 19 100 a rational number?
- Is 0 a rational number?
- What is not a real number?
- What type of number is the square root of 19?
- Is 0.5 a natural number?
- Is 20 a natural number?
- Is 2/3 an irrational number?
- What is the smallest rational number?

## Is 2.5 a rational number?

Answer and Explanation: The decimal 2.5 is a rational number.

All decimals can be converted to fractions.

The decimal 2.5 is equal to the fraction 25/10.

By definition, a….

## Is 19 a rational number?

For 19 to be a rational number, the quotient of two integers must equal 19. In other words, for 19 to be a rational number, 19 must be able to be expressed as a ratio where both the numerator and the denominator are integers (whole numbers). … Thus, the answer to the question “Is 19 a rational number?” is YES.

## Is 1.4 a rational number?

Irrational Numbers No fraction is equal to exactly that number. Similarly, the square root of two (√2) can be estimated as 1.4, but 1.4 * 1.4 does not equal 2 exactly. There is no fraction equaling any decimal which, multiplied by itself, equals two.

## What kind of number is 0?

Main types ): The counting numbers {1, 2, 3, …} are commonly called natural numbers; however, other definitions include 0, so that the non-negative integers {0, 1, 2, 3, …} are also called natural numbers. Natural numbers including 0 are also called whole numbers.

## Why is the number 19 100 a rational number?

A. It is the quotient of 100 divided by 19. It is the quotient of 10 divided by 9. …

## Is 0 a rational number?

Zero Is a Rational Number As such, if the numerator is zero (0), and the denominator is any non-zero integer, the resulting quotient is itself zero.

## What is not a real number?

A non-real, or imaginary, number is any number that, when multiplied by itself, produces a negative number. Mathematicians use the letter “i” to symbolize the square root of -1. An imaginary number is any real number multiplied by i. For example, 5i is imaginary; the square of 5i is -25.

## What type of number is the square root of 19?

irrational numberAnswer and Explanation: The square root of 19 is not a rational number. It is an irrational number. You can tell this without doing any calculating if you realize that 19 is…

## Is 0.5 a natural number?

Natural Numbers (N), (also called positive integers, counting numbers, or natural numbers); They are the numbers {1, 2, 3, 4, 5, …} … This includes all numbers that can be written as a decimal. This includes fractions written in decimal form e.g., 0.5, 0.75 2.35, ⁻0.073, 0.3333, or 2.142857.

## Is 20 a natural number?

Natural Numbers – the set of numbers, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,….., that we see and use every day. The natural numbers are often referred to as the counting numbers and the positive integers. Whole Numbers – the natural numbers plus the zero.

## Is 2/3 an irrational number?

For example 3=3/1, −17, and 2/3 are rational numbers. … Most real numbers (points on the number-line) are irrational (not rational). The rational numbers are those which have repeating decimal expansions (for example 1/11=0.09090909…, and 1=1.000000…

## What is the smallest rational number?

00 is the smallest rational number.