Definitions [2]
Rational Number
A number that can be expressed in the form `p/q`, where p and q are integers, and q is not equal to zero "q ≠ 0", is called a rational number. The numbers `-2/7, 3/8, 3` etc., are rational numbers.
Definition: Multiple
A number is called a multiple of another if it is exactly divisible by that number, i.e., the division leaves no remainder.

Concepts [11]
- Rational Numbers
- Closure Property of Rational Numbers
- Commutative Property of Rational Numbers
- Associative Property of Rational Numbers
- Distributive Property of Multiplication Over Addition for Rational Numbers
- Identity of Addition and Multiplication of Rational Numbers
- Negative Or Additive Inverse of Rational Numbers
- Concept of Reciprocals or Multiplicative Inverses
- Rational Numbers on a Number Line
- Rational Numbers Between Two Rational Numbers
- Multiples and Common Multiples
