Ratios, Rates and Unit Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you simplify a ratio?

Back

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

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 dollars per hour.

Front

What is a unit rate?

Back

A unit rate is a rate in which the denominator is 1, showing how much of one quantity corresponds to one unit of another quantity.

Front

Calculate the unit rate: 60 miles in 2 hours.

Back

30 miles per hour.

Front

If a car travels 231 miles using 7 gallons of gas, what is the mileage in miles per gallon?

Back

33 miles per gallon.

Front

Which is the equivalent rate of $9 per hour?

Back

$27 in 3 hours.

Front

What is the ratio of 35 to 14 simplified?

Back

5 to 2.

Front

If there are 8 green marbles, 3 blue marbles, 7 red marbles, and 2 yellow marbles, what is the ratio of green marbles to all marbles?

Back

2 to 5.

Front

What is the formula to find a unit rate?

Back

Unit Rate = Total Quantity / Number of Units.