Unit Rates/Complex Fractions

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, cost per item).

Front

How do you calculate a unit rate from a total cost and quantity?

Back

To calculate a unit rate, divide the total cost by the quantity. For example, if the total cost is $97.50 for 15 pizzas, the unit rate is $97.50 ÷ 15 = $6.50 per pizza.

Front

If a person types 408 words in 4 minutes, how do you find their typing speed in words per minute?

Back

To find the typing speed, divide the total words by the total minutes: 408 words ÷ 4 minutes = 102 words per minute.

Front

How do you compare two prices to determine the better deal?

Back

To compare two prices, calculate the unit price for each item (price per ounce, price per item, etc.) and compare these values. The lower unit price indicates the better deal.

Front

What is the unit price of Oreos if they cost $2.98 for 15 oz?

Back

To find the unit price, divide the total price by the total ounces: $2.98 ÷ 15 oz = approximately $0.199 per oz.

Front

What is the unit price of Chips Ahoy if they cost $2.50 for 14 oz?

Back

To find the unit price, divide the total price by the total ounces: $2.50 ÷ 14 oz = approximately $0.179 per oz.

Front

If an eight pack of juice boxes costs $4.79, what is the unit price per juice box?

Back

To find the unit price, divide the total price by the number of juice boxes: $4.79 ÷ 8 = approximately $0.598 per juice box.

Front

If a 12 pack of juice boxes costs $6.59, what is the unit price per juice box?

Back

To find the unit price, divide the total price by the number of juice boxes: $6.59 ÷ 12 = approximately $0.549 per juice box.

Front

How do you determine which pack of juice boxes is the better buy?

Back

Compare the unit prices of both packs. The pack with the lower unit price is the better buy.

Front

What is the unit rate for granola if Will spent $3.75 for 3 pounds?

Back

To find the unit rate, divide the total cost by the total pounds: $3.75 ÷ 3 = $1.25 per pound.