Ratios & 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

What is a rate?

Back

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

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor (GCF).

Front

What is an equivalent ratio?

Back

Equivalent ratios are ratios that express the same relationship between quantities, even if the numbers are different.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the first quantity by the second quantity to determine how much of the first quantity corresponds to one unit of the second quantity.

Front

If a car travels 440 miles in 8 hours, what is the unit rate?

Back

55 miles in 1 hour.

Front

What is the unit rate of 18 houses on 2 blocks?

Back

9 houses per block.

Front

If 18 orders are completed in 3 days, what is the unit rate?

Back

6 orders per day.

Front

How do you calculate the distance fallen per second if a skydiver falls 144 feet in 3 seconds?

Back

Divide 144 feet by 3 seconds to get 48 feet per second.

Front

What is the formula for finding a unit rate?

Back

Unit Rate = Total Quantity / Number of Units.