Comparing and Ordering Rational Numbers

What is a rational number?

• A number that is always a whole number

• A number that can be expressed as a ratio of two integers

• A number that cannot be expressed as a fraction

• A number that is always an integer

Which of the following is NOT a rational number?

• pi

• 0.75

• 1/2

• 2

What is the least common multiple (LCM) of 2 and 5?

• 10

• 20

• 5

• 2

How do you find the least common denominator (LCD) of two fractions?

• By adding the denominators

• By subtracting the denominators

• By dividing the denominators

• By finding the least common multiple of the denominators

What is the least common denominator of 1/3 and 3/4?

• 7

• 12

• 3

• 4

Which of the following fractions is greater: 7/12 or 8/18?

• They are equal

• Cannot be determined

• 8/18

• 7/12

How do you convert a percentage to a decimal?

• Multiply by 100

• Divide by 100

• Add 100

• Subtract 100

Which of the following is the correct order from least to greatest: 3.14, pi, 3.4, 3.44?

• 3.14, pi, 3.44, 3.4

• 3.14, 3.4, pi, 3.44

• pi, 3.14, 3.4, 3.44

• 3.14, pi, 3.4, 3.44

What is the decimal equivalent of 67%?

• 67.0

• 0.67

• 6.7

• 0.067

Which of the following is the least number: 0.67, 0.64, 0.6, 0.69?

• 0.69

• 0.67

• 0.64

• 0.6