Understanding Rational Numbers

What is a rational number?

• A number that is always negative

• A number that is always positive

• A number that cannot be expressed as a fraction

• A number that can be expressed as a fraction with a non-zero denominator

How can the integer 10 be expressed as a fraction?

• 10/0

• 10/1

• 1/10

• 0/10

What is the simplest form of the fraction 26/100?

• 13/50

• 26/50

• 26/200

• 13/100

How do you convert a repeating decimal like 0.444... into a fraction?

• Multiply by 10 and subtract

• Divide by 100 and add

• Multiply by 100 and add

• Divide by 10 and subtract

What is the fraction form of the repeating decimal 0.444...?

• 1/4

• 4/9

• 2/5

• 4/10

What is the key difference between rational and irrational numbers?

• Rational numbers can be expressed as fractions, irrational numbers cannot

• Rational numbers are finite, irrational numbers are infinite

• Rational numbers are always positive, irrational numbers are negative

• Rational numbers are integers, irrational numbers are decimals

Which of the following is an example of an irrational number?

• √2

• 3.14

• 1/2

• 0.75

Which set does the number 15 belong to?

• Integer, Rational, Irrational, Natural

• Whole, Integer, Rational, Irrational

• Rational, Irrational, Whole, Natural

• Natural, Whole, Integer, Rational

What set does the number 1.414213562... belong to?

• Rational

• Natural

• Irrational

• Whole

Which of the following numbers is not a rational number?

• 7/8

• √3

• 15

• 0.5