Question

Is 30.5% a rational number? Why?

Answer 1

YES

Explanation:

There are six common sets of numbers.

Natural (Counting) Numbers:

{1,2,3,4,5,…}Whole Numbers: Natural Numbers and {0}

Integers: {…,−3,−2,−10,1,2,3,…}

Rational Numbers: Integers, Fractions, and Terminating or Repeating Decimals

Irrational Numbers: Non Terminating or Non Repeating Decimals

Real Numbers: Rational Numbers and Irrational Numbers

Determine which sets the numbers fit into.

Natural (Counting) Numbers:

Whole Numbers:

Integers:

Rational Numbers:

15.8,20.7,25.6,30.5,35.4

Irrational Numbers:

Real Numbers:

15.8,20.7,25.6,30.5,35.4