SSAT Upper Level Math : Rational Numbers

Study concepts, example questions & explanations for SSAT Upper Level Math

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Example Questions

Example Question #11 : Mixed / Improper Fractions

Rewrite  as an improper fraction in lowest terms. What will the sum of its numerator and its denominator be?

Possible Answers:

Correct answer:

Explanation:

The numerator of the improper form of a mixed fraction is the original numerator added to the product of the integer and the original denominator. The new denominator is the same as the old one. Therefore, 

Add the numerator and the denominator: 

Example Question #221 : Rational Numbers

Change the following mixed number into an improper fraction in simplest form:

Possible Answers:

Correct answer:

Explanation:

To change a mixed fraction into an improper fraction, keep the denominator the same.

To find the numerator, multiply the whole number part of the mixed fraction by the denominator, then add that value to the numerator.

Example Question #1 : How To Find Out An Improper Fraction From A Mixed Fraction

Change the following fraction from a mixed number into an improper fraction in simplest form:

Possible Answers:

Correct answer:

Explanation:

To change a mixed number into an improper fraction, keep the denominator. Multiply the whole number part of the mixed number by the denominator and add your result to the given numerator to find the numerator of the improper fraction.

Example Question #2 : How To Find Out An Improper Fraction From A Mixed Fraction

Write  as an improper fraction.

Possible Answers:

Correct answer:

Explanation:

To change a mixed number to an improper fraction, keep the denominator.

Then, multiply the whole number by the denominator and add that to the given numerator.

Example Question #1 : How To Find Out An Improper Fraction From A Mixed Fraction

Write  as an improper fraction.

Possible Answers:

Correct answer:

Explanation:

To change a mixed number to an improper fraction, keep the denominator.

Then, multiply the whole number by the denominator and add that to the given numerator.

Example Question #221 : Rational Numbers

Write  as an improper fraction.

Possible Answers:

Correct answer:

Explanation:

To change a mixed number to an improper fraction, keep the denominator.

Then, multiply the whole number by the denominator and add that to the given numerator.

Example Question #2 : How To Find Out An Improper Fraction From A Mixed Fraction

Write  as an improper fraction.

Possible Answers:

Correct answer:

Explanation:

To change a mixed number to an improper fraction, keep the denominator.

Then, multiply the whole number by the denominator and add that to the given numerator.

Example Question #222 : Rational Numbers

Express  as an improper fraction.

Possible Answers:

Correct answer:

Explanation:

To change a mixed number to an improper fraction, keep the denominator.

Then, multiply the whole number by the denominator and add that to the given numerator.

Example Question #1 : How To Find A Solution To A Compound Fraction

Simplify:

 

Possible Answers:

Correct answer:

Explanation:

Simplify into a complex fraction for the numerator and denominator.

For the numerator, we need to multiply  then the top should read .

For the bottom, we need to multiply  in order to add the components. Thus the bottom should read .

Dividing fractions is the same as multiplying the numerator by the reciprocal of the denominator.

Therefore, multiply top and bottom by  and then you should see that if you factor a  on the bottom, the  cancels along with the .

The answer then should be

Example Question #2 : How To Find A Solution To A Compound Fraction

Convert  into a fraction. 

Possible Answers:

Correct answer:

Explanation:

The whole number  is multipled by the denominator . Then we add the numerator . This value is divided by the denominator. Final answer is .

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