ISEE Middle Level Math : How to multiply fractions

Study concepts, example questions & explanations for ISEE Middle Level Math

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Example Questions

Example Question #21 : How To Multiply Fractions

Raise  to the fifth power.

Possible Answers:

 cannot be raised to the fifth power.

Correct answer:

Explanation:

To raise a negative number to an odd-numbered power, raise its absolute value to that power, then make the sign negative. Also, to raise a fraction to a power, raise its numerator and its denominator to that power. Combine these ideas as follows:

Example Question #22 : How To Multiply Fractions

Solve for  in this equation:

Possible Answers:

Correct answer:

Explanation:

To solve for , we need to cross multiply.

Divide both sides by 27 to isolate the variable.

The fraction cannot be reduced, making this our final answer.

 

Example Question #353 : Numbers And Operations

Which of the answer choices is equal to ?

Possible Answers:

Correct answer:

Explanation:

The expression,  is equal to:

This is equal to:

This equals:

Example Question #24 : How To Multiply Fractions

Find the product. 

Possible Answers:

Correct answer:

Explanation:

To multiply fractions, simply multiply the first numerator by the second numerator and the first denominator by the second denominator.  Simply when necessary. 

Example Question #25 : How To Multiply Fractions

What is  of ?

Possible Answers:

Correct answer:

Explanation:

To find the answer, you must multiple the fractions together.  

When multiplying fractions, all you have to do is multiple the numerators together and the denominators together.  

So 

 

and 

 

giving us 

.

Example Question #26 : How To Multiply Fractions

Possible Answers:

Correct answer:

Explanation:

To multiply fractions, you must multiple the numerators and denominators.  

So 

 

and 

.  

Your final answer is .

Example Question #27 : How To Multiply Fractions

Solve for 

Possible Answers:

Correct answer:

Explanation:

To multiply fractions, you multiply the numerators

 

and multiply the denominators

 

to get,

 .  

They each have a common factor of  so it reduces down to  by dividing each.

Example Question #28 : How To Multiply Fractions

Multiply the following:

Possible Answers:

Correct answer:

Explanation:

When multiplying fractions, we will first multiply the numerators, then we will multiply the denominators.

So, given the fractions

when multiplying, we will get

Example Question #361 : Numbers And Operations

Simplify the following expression:

 

Possible Answers:

Correct answer:

Explanation:

Simplify the following expression:

To multiply fractions, simply multiply across the top and bottom:

Now, we cannot simplify our answer, so our answer remains:

Example Question #30 : How To Multiply Fractions

Simplify the following:

Possible Answers:

Correct answer:

Explanation:

When we multiply fractions, we first multiply the numerators, then we multiply the denominators.  We do not need to find common denominators when multiplying.  So in

we will multiply.  We get

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