Rates and Ratios

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 simplify a ratio?

Back

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

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' something (e.g., miles per hour).

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 units purchased.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they can be simplified to the same fraction.

Front

If Jack jumps 40 times in 4 minutes, how many times does he jump in 1 minute?

Back

10 times.

Front

If there are 88 students in 4 classes, how many students are in each class?

Back

22 students per class.

Front

Will spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?

Back

$1.25 per pound.

Front

Charles can type 675 words in 9 minutes. How many words can he type per minute?

Back

75 words per minute.

Front

Which of the following ratios is NOT equivalent to 3:5? 15:25, 9:15, 21:28, 30:50

Back

21:28.