Ratios and Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or 'a:b'.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as speed (miles per hour) or price per item.

Front

If Paula reads 88 pages in 2 hours, how many pages does she read per hour?

Back

44 pages per hour.

Front

What is the ratio of pears to apples if there are 7 apples and 8 pears?

Back

8:7.

Front

What is the ratio of apples to pears if there are 7 apples and 8 pears?

Back

7:8.

Front

If you receive 36 text messages in 12 minutes, what is the rate of text messages per minute?

Back

3 text messages per minute.

Front

If four movie tickets cost $28.00, what is the cost of one movie ticket?

Back

$7.

Front

What does it mean to find a unit rate?

Back

Finding a unit rate means determining the amount of one quantity per one unit of another quantity.

Front

How do you convert a ratio into a fraction?

Back

To convert a ratio into a fraction, write the first quantity as the numerator and the second quantity as the denominator.