How do you simplify a rate to its unit rate?

How do you simplify a rate to its unit rate?

In this lesson you will learn to create a unit rate by using a

diagram.

Let’s Review

A unit rate is a rate where a quantity is always being compared to one of

another quantity.

30 miles per hour1

A Common MistakeYou ran at a speed of 20 minutes per 2 miles.

10 minutes per mile!

110mile per minute

Core Lesson

Annie took 4 minutes to decorate 8 cookies. What is her unit rate of decorating cookies?

Minutes 1 1 1 1 = 4

Cookies 2 2 2 2 = 8

Core Lesson

Minutes 1 1 1 1 = 4

Cookies 2 2 2 2 = 8

Annie decorates 2 cookies per minute.

Annie takes 1 2 minute per cookie.

In this lesson you have learned to create a unit rate by using a

diagram.

Guided Practice

A car travels at a speed of 15 miles in 5 hours. What are its unit rates of speed?

Extension Activities

It took Charles 4 minutes to decorate the cookies below. Use a diagram to create the two unit rates.

Underneath your diagram, explain the computation you used to create the unit rates.

Extension Activities

Cereal A comes in a 24 oz container and costs $3.60. Cereal B costs $2.80 and comes in a 20 oz container. Which cereal is more economical?

Hint: Create a diagram for each cereal.

Quick Quiz

George buys 15 oranges for $3. What are the two unit rates for this scenario?

Kelly ices four cupcakes in one minute. What is the other unit rate for this scenario?