Page 22 - 7-Math-2 Rational Numbers

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• Addition of rational numbers with:
Same denominator. Different denominators.

• Subtraction of rational numbers with:
Same denominator. Different denominators.

• To find the product of two rational numbers, multiply the
numerator of one rational number by the numerator of the other.
Similarly, multiply the denominators.

• Division is an inverse operation of multiplication. So, for any two
rational numbers.

• 0 is called additive identity and 1 is called multiplicative identity.
• is called the reciprocal of

• If are two rational numbers, then according to the
commutative property:

• If and are three rational numbers, then according to the
associative property.

• Now again consider the three rational numbers and
then according to the distributive property:

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