Unit Rates with Fractions

Front

What is a unit rate?

Back

A rate expressed as something per one.

Front

Kyle entered a pie eating contest. He took 1/5 of a minute to eat 1/2 of a pie. How many pies can Kyle eat per minute?

Back

2 and 1/2 pies per minute.

Front

Jade spent 1⁄2 of an hour playing on her phone. That used up 1⁄9 of her battery. How long would she have to play on her phone to use the entire battery?

Back

4-1/2 hours.

Front

Josie can jog 1 and 1/3 miles in 1/4 hour. Find her speed in miles per hour.

Back

5 and 1/3 miles per hour.

Front

During a bake sale, 1 1/2 dozen cookies were sold in 1/3 hour. What is the unit rate for the dozens of cookies sold per hour?

Back

9/2.

Front

What is the formula to calculate a unit rate?

Back

Unit Rate = Total Quantity / Total Time.

Front

If a car travels 150 miles in 3 hours, what is the unit rate in miles per hour?

Back

50 miles per hour.

Front

How do you convert a fraction to a unit rate?

Back

Divide the numerator by the denominator and then adjust for the time or quantity.

Front

What is the unit rate of 3/4 of a pizza eaten in 1/2 hour?

Back

1 and 1/2 pizzas per hour.

Front

If 5 gallons of paint cover 200 square feet, what is the unit rate of coverage per gallon?

Back

40 square feet per gallon.