CBSE Grade 7 Maths Chapter 9 - Rational Numbers - Multiplication

Operations on Rational Numbers - Multiplication

a. Multiplication of a Rational Number with a Positive Integer.

To multiply a rational number with a positive integer

  • we simply multiply the integer with the numerator and
  • the denominator remains the same.
Example

b. Multiply of a Rational Number with a Negative Integer

To multiply a rational number with a negative integer

  • we simply multiply the integer with the numerator and
  •  the denominator remains the same
  • the resultant rational number will be a negative rational number.

Example

c. Multiply of a Rational Number with another Rational Number

To multiply a rational number with another rational number

  • we have to multiply the numerator of two rational numbers and
  • multiply the denominator of the two rational numbers.

Examples