Comparing and Ordering Rational Numbers

What type of numbers are considered rational numbers?

• Only whole numbers

• Only fractions

• Only integers

• Numbers that can be expressed as fractions, including decimals

Which of the following is NOT a strategy to compare and order rational numbers?

• Using common denominators

• Cross-multiplication

• Converting to decimals

• Using logarithms

When using common denominators, what is the first step?

• Add the fractions

• Find a common denominator

• Subtract the fractions

• Convert fractions to decimals

If you have the fractions 5/8 and 7/12, which strategy can you use to compare them?

• Convert to mixed numbers

• Cross-multiplication

• Add the fractions

• Subtract the fractions

What is the result of cross-multiplying 5/8 and 7/12?

• 56 and 60

• 35 and 84

• 60 and 56

• 40 and 84

Why might you convert improper fractions to decimals?

• Improper fractions cannot be compared

• Decimals are easier to compare

• Decimals are always larger

• Improper fractions are always negative

What is the decimal form of the fraction 18/4?

• 4.5

• 4.75

• 4.05

• 4.25

When comparing negative decimals, which statement is true?

• Negatives that look bigger are actually smaller

• Negatives that look smaller are actually bigger

• All negative numbers are equal

• Negatives are always greater than positives

What is the fraction form of the decimal 4.05?

• 4 and 5/10000

• 4 and 5/100

• 4 and 5/1000

• 4 and 5/10

Which of the following is NOT a recommended practice tip?

• Use the FDP chart

• Use logarithms to compare

• Convert decimals to fractions

• Convert fractions to decimals