Is -12 an integer, rational, or real number?

1 Answer
Jul 24, 2018

Answer:

It's all three

Explanation:

Given: #-12#

Integers: #{...-3, -2, -1, 0, 1, 2, 3, 4, ...}#

Rationals: any number that is or can be made into a fraction.

Irrationals: numbers that can't be made into a fraction #{pi, sqrt(2), ...}#

Reals: any number that is rational or irrational - any number on the number line.

As you can see, #-12# is an integer, but it is also a rational number because it can be made into a fraction: #-12/1# and it is real because it can be found on the number line.

https://www.basic-mathematics.com/classification-of-numbers.html