Rational Numbers Session 1

Which of the following numbers is a rational number: 3, √2, -5, 0.25?

• √2

• 2.5

• 3, -5, 0.25

• -3

Express 3/4 in decimal form.

• 0.47

• 0.75

• 0.57

• 0.84

Is 0 a rational number? Why or why not?

• No, because it is an imaginary number

• Yes

• No, because it is a prime number

• No, because it is an irrational number

Convert 2.5 into a fraction in simplest form.

• 2.5/1

• 5/2.5

• 1.25

• 5/2

Explain the concept of a rational number.

• A rational number is any number that can be expressed as a fraction where the numerator and denominator are irrational numbers.

• A rational number is any number that can be expressed as a fraction where the numerator and denominator are not integers.

• A rational number is any number that can be expressed as a fraction where the numerator and denominator are decimals.

• A rational number is any number that can be expressed as a fraction where the numerator and denominator are integers, and the denominator is not zero.

What is the standard form of the rational number 6/9?

• 5/8

• 4/6

• 3/2

• 2/3

Which of the following is not a rational number: 0.333..., 1/3, √5, -2.5?

• 0.333...

• -2.5

• 1/3

• √5

If a number can be expressed as a fraction a/b where a and b are integers and b is not equal to 0, what type of number is it?

• Whole number

• Irrational number

• Complex number

• Rational number

Simplify the rational number 12/18.

• 3/4

• 5/7

• 2/3

• 4/6