Ratios, Rates and Unit Rates Review

Front

What is a ratio?

Back

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

Front

How do you write a ratio?

Back

A ratio can be written in three ways: using a colon (e.g., 3:4), as a fraction (e.g., 3/4), or in words (e.g., '3 to 4').

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per 1'.

Front

How do you find the unit rate from a total cost?

Back

To find the unit rate from a total cost, divide the total cost by the number of items.

Front

What is the ratio of 14 cows to 10 horses in simplest form?

Back

7 to 5.

Front

How do you simplify a ratio?

Back

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

Front

What is the unit rate of 6 movie tickets costing $30?

Back

$5 per ticket.

Front

How do you express a ratio as a fraction?

Back

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

Front

What is the simplest form of the ratio 15 to 24?

Back

5 to 8.

Front

What does it mean to write a ratio in lowest terms?

Back

Writing a ratio in lowest terms means reducing it to its simplest form where the two numbers have no common factors other than 1.