Properties of Rationals

What is the multiplicative inverse of 2/3?

• -2/3

• 3/2

• -3/2

• 2/3

3+0=3

is an example of which property?

• Multiplicative Inverse

• Additive Identity

• Multiplicative Identity

• Additive inverse

The sum of 2 rational numbers is always a rational number ,this is indicator of which propery

• commutative

• distributive

• closure

• associative

The reciprocal of a negative rational number _____

• is a positive rational number

• is a negative rational number

• can be either a positive or a negative rational number

• does not exist

0 is called:

• Identity element for the multiplication of the rational numbers

• Identity element for the addition of rational numbers

• Identity element for the subtraction of rational numbers

• None of these

If a + (-a )= 0; then ( -a ) is called

• Additive identity of a

• additive inverse of a

• Multiplicative identity of a

• None of these

Multiplicative inverse of zero is-

• 0

• 1

• -1

• Not determinable

The product of a rational number and its reciprocal is-

• 0

• 1

• -1

• None of these

Which of the following is true ?

• All integers are rational numbers

• All rational numbers are integers

• All rational numbers are natural numbers

• All rational numbers are whole numbers

Associative property is true for which operations on rational numbers ?

• Addition and Multiplication

• Subtraction and Division

• Addition and Subtraction

• Addition and Division