Question

Question 4

Classify each number as rational or irrational.

Drag the choices into the boxes to correctly complete the table.

Answer 1

Rational

0.167

2/9

√ 225

Irrational

π

Explanation:

• 0.167 is a terminating decimal, which means it can be expressed as a fraction of two integers. Therefore, it is a rational number.
• 2/9 is a fraction of two integers, so it is a rational number.
• π (pi) is a non-repeating, non-terminating decimal, which means it cannot be expressed as a fraction of two integers. Therefore, it is an irrational number.
• √225 = 15, which is a rational number as it can be expressed as a ratio of two integers (15/1).