Unit Rates with Fractions

Front

What is a unit rate?

Back

A rate expressed as something per one.

Front

Joe can run 3 2/5 miles in 7/8 of an hour. What is his speed in miles per hour?

Back

3 31/35 mph

Front

Lauren bikes 4/3 miles in 1/10 hour. How long does it take her to bike one mile?

Back

3/40 hours

Front

Kendall used 1/2 of a bag of seed to plant 1/10 of her garden. How many bags will Kendall use to plant her garden?

Back

5

Front

A recipe calls for 2/3 cup white sugar for every ¾ cup brown sugar. If I want to use 1 cup of white sugar, how much brown sugar should I use?

Back

9/8 cups

Front

How do you calculate a unit rate from a fraction?

Back

Divide the numerator by the denominator to find the rate per one.

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

What is the formula for finding the unit rate?

Back

Unit Rate = Total Quantity / Total Time.

Front

If a recipe requires 1/4 cup of oil for every 2 cups of flour, how much oil is needed for 8 cups of flour?

Back

1 cup of oil.

Front

What is the relationship between unit rates and proportions?

Back

Unit rates can be used to set up proportions to solve for unknown quantities.