SSAT Upper Level Quantitative Flashcards: Comparing Rational Forms

Study Comparing Rational Forms in SSAT Upper Level Quantitative with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What is the quickest method to compare $\frac{a}{b}$ and $\frac{c}{d}$ for positive $b,d$ ?

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ANSWER

Compare $ad$ and $bc$ (cross-multiply). Cross-multiplication determines the relationship without converting to decimals or finding common denominators, as $ad > bc$ implies $\frac{a}{b} > \frac{c}{d}$ .

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SSAT Upper Level Quantitative: Fractions, Decimals, and Percents

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What this deck covers

This deck focuses on Comparing Rational Forms, giving you a quick way to review the definitions, rules, and examples that matter most for SSAT Upper Level Quantitative.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 9Practice questions for this set

A student claims that

\frac{3}{7} > 0.42

because

\frac{3}{7} = 0.428571...

and

0.428571 > 0.42

. What is wrong with this reasoning?

Choose an answer

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