SSAT Elementary Level Math : How to find a ratio

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

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Example Questions

Example Question #11 : Numbers And Operations

On Monday, Annie sold  shirts and  necklaces in her shop. On Tuesday, she sold  shirts and  necklace. What is the ratio of shirts to necklaces that she sold on Monday and Tuesday?

Possible Answers:

Correct answer:

Explanation:

First we need to find the total number of each item sold on the two days.

Next, set up a ratio.

The ratio can be reduced by removing a common factor, 2.

Our final answer is .

Example Question #11 : Ratio And Proportion

What is the simplest form of the ratio  to ?

Possible Answers:

Correct answer:

Explanation:

The ratio of  to  can be reduced by dividing each value by .

This gives us  to , or , which is the correct answer. 

Example Question #11 : How To Find A Ratio

If I have 6 red marbles and 5 blue marbles, what is the ratio of red marbles to blue marbles?

Possible Answers:

Correct answer:

Explanation:

To find a ratio, simply compare the desired ones to the undesired ones. Read the ":" sign as "to".

The desired ones are the red marbles while the undesired ones are the blue marbles.

Thus,

Example Question #12 : How To Find A Ratio

I have 7 green marbles and 4 blue marbles in a bag. Find the ratio of blue marbles to green marbles.

Possible Answers:

Correct answer:

Explanation:

To find a ratio, simply compare the number of desired to the number of undesired. Thus, I am comparing the number of blue to green. ":" means to. Therefore, our answer is:

Example Question #15 : How To Find A Ratio

Simplify the following ratio: 

Possible Answers:

Correct answer:

Explanation:

In order to simplify the ratio, you need to find the greatest common factor of the two numbers. The greatest common factor of  is . If you reduce both numbers by  then it would be 

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