Comparing and Ordering Rational Numbers

What is a rational number?

• A number that cannot be written as a fraction

• A number that can be written as a fraction

• A number that is always a decimal

• A number that is always an integer

What is the least common denominator?

• The smallest number that is a factor of the denominators

• The largest number that is a multiple of the denominators

• The smallest number that is a multiple of the denominators

• The largest number that is a factor of the denominators

How can you compare two fractions using cross multiplication?

• Multiply the numerators together and compare the products

• Multiply the denominators together and compare the products

• Multiply the numerator of one fraction by the denominator of the other and compare the products

• Multiply the denominator of one fraction by the numerator of the other and compare the products

What is the decimal equivalent of 8/9?

• 0.8

• 0.88

• 0.888

• 0.8888

Which is greater: 1/3 or 0.3?

• Cannot be determined

• They are equal

• 0.3

• 1/3

What is the order of the following wrenches from least to greatest: 3/8, 1/4, 5/16, 1/2, 3/4?

• 1/4, 5/16, 1/2, 3/8, 3/4

• 1/4, 5/16, 3/8, 1/2, 3/4

• 1/4, 3/8, 5/16, 1/2, 3/4

• 3/8, 1/4, 5/16, 1/2, 3/4

How do you compare negative rational numbers on a number line?

• The number to the left is always greater

• The number to the right is always greater

• The number to the left is always less

• The number to the right is always less

Which is greater: -3.15 or -3.17?

• Cannot be determined

• They are equal

• -3.17

• -3.15

How do you compare negative fractions with different denominators?

• Convert them to decimals

• Find a common denominator and compare the numerators

• Compare the denominators directly

• Ignore the negative sign and compare the fractions

What is the correct inequality for -7/8 and -6/8?

• -7/8 > -6/8

• -7/8 < -6/8

• -7/8 = -6/8

• Cannot be determined