Math Rational and Irrational Numbers

√7

• Rational 

• Irrational

A rational number is a number that can be written as a ​ (a)   .

• fraction

• decimal

• whole

4π

• rational

• irrational

Which of the following is rational?

• 202002000...

• π

• √25

• √12

Which number is a rational number?

• 2.25

0.535353... is ​ (a)   because​ it ​ (b)   be written as ​ (c)   .

• rational

• irrational

• can

• can't

• fraction

• rational because it is a perfect square

• irrational because it is not a perfect square.

• rational because it can be divided evenly

What is the "magic denominator" we use for a repeating decimal.