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 #11 : How To Multiply Fractions

Multiply the fractions:

Possible Answers:

Correct answer:

Explanation:

To multiply fractions, multiply both numerators on top and both denominators on the bottom.

Then, reduce to simplest form by removing any common factors:

Answer:

Example Question #12 : Fractions

Solve:

Possible Answers:

Correct answer:

Explanation:

Example Question #13 : Fractions

Solve for y:

Possible Answers:

Correct answer:

Explanation:

In order to solve for y, cross multiplication must be used. Appyling cross multiplication, we get:

Next, we divide each side by 12. 

This results in  

Example Question #14 : Fractions

On Monday, Marsha saw a sweater that she wanted to buy. It was 15 dollars. She went back the next day and saw that it was only 10 dollars. Which of the following is a sale that the store could have been running, explaining the reduced price on the sweater?

Possible Answers:

 percent off

 off

 percent off

 off

Correct answer:

 off

Explanation:

Given that the sweater's price was reduced by 5 dollars, this is a one third reduction because one third of 15 dollars is 5 dollars. 15 dollars minus 5 dollars is equal to 10 dollars.

Thus, the correct answer is:

  off

Example Question #12 : How To Multiply Fractions

One dollar is equal to about 116.76 Japanese yen. For how many yen should a tourist to Japan be able to exchange $3,000 at that rate (nearest whole yen)?

Possible Answers:

Correct answer:

Explanation:

One dollar is equal to 116.76 yen, so multiply $3,000 by this conversion rate to get

 yen.

Example Question #12 : How To Multiply Fractions

Evaluate:

Possible Answers:

Correct answer:

Explanation:

By the order of operations, carry out the multiplication first, then the leftmost subtraction, then the rightmost subtraction:

Example Question #351 : Numbers And Operations

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:

Example Question #352 : Numbers And Operations

Raise  to the fourth power.

Possible Answers:

Correct answer:

Explanation:

To raise a negative number to an even-numbered power, raise its absolute value to that power: 

Example Question #19 : How To Multiply Fractions

Evaluate:

Possible Answers:

Correct answer:

Explanation:

By the order of operations, carry out the operations in parentheses first; since there is a multiplication and an addition present, carry them out in that order. Finally, carry out the subtraction:

Example Question #20 : How To Multiply Fractions

Raise  to the fourth power.

Possible Answers:

Correct answer:

Explanation:

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

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