Learn Class 7 Math - Rational Numbers

Rational numbers are the number set that includes many numbers in the form of p/q, in which q is not equal to 0. This set of numbers, whether natural numbers, whole numbers, integers, or any.

Numerator & Denominator

• In rational numbers, i.e., p/q, p is the numerator.
• And in p/q, q is known as the denominator.
• Example: ⅔, 2 is the numerator, and 3 is the denominator.

Types of rational numbers

Rational numbers are of many types. Such as:

• Equivalent number

  When the rational numbers get multiplied with the same number on both sides, i.e., numerator and denominator, it forms another rational number set.

• Positive number

  The positive set of rational numbers is the one that consists of both numerator and denominator positive.

  Example: 5/7, 4/5.

• Negative number

  The positive set of rational numbers is the one that consists of both numerator and denominator negative.

  Example: -2/3, -5/7.

Position of rational numbers on a number line

On the number line, the rational numbers are divided according to types.

• The positive numbers will always be presented on the right side of zero.
• And negative numbers are always on the left side of zero.

Note: If the denominator is negative, the complete number is negative.