Exploring Rational Numbers
7th Grade•40 minutes•CCSS 7.NS.A.1
Learning Objective
I can identify and represent rational numbers in different forms.
Key Concepts
A rational number can be expressed as the ratio of two integers.
Integers, finite decimals, and repeating decimals are all examples of rational numbers.
Numbers that cannot be expressed as a ratio of two integers are called irrational numbers; examples include π, e, and the square root of 2.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
View questions preview
1. Provide three distinct representations of the integer -5 as a ratio of two integers.
2. Express the decimal 6.25 as a ratio of two integers in its simplest form.
3. Determine which of the following numbers is irrational:
...and 4 more questions
Educational Video
Introduction to rational and irrational numbers | Algebra I | Khan Academy
Khan Academy