Unit RatesObjective: I will compute unit rates associated with ratios of fractions with like or different units and use

unit ratios to convert ratesMAFS.7.RP.1.1: Compute unit rates associated with

ratios of fractions, including ratios of lengths, areas andother quantities measured in like or different units.

Do NowO If a person walks ½ mile

in each ¼ hour, compute the unit rate

Unit Rates

ODuring their last workout, Izzy ran 2 ¼ miles in 15 min, and her friend Julia ran 3 ¾ miles in 25 minutes. Which girl ran more miles per minute?

Unit Rates

1. Method 1: Create a table:

2. Change mixed fractions:

Izzy 2 ¼ miles 15 min

Julia 3 ¾ miles 25 min

Unit Rates

3. Find ratio by dividing fractions:

Unit RatesO Method 2: Use time clocks (make a

diagram) Izzy Julia

Unit RatesO Your turn: A turtle walks 7/8 of a mile

in 50 minutes. What is the unit rate expressed in miles per hour?

Unit RatesO Reflection: How is the unit rate

calculated? Can we calculate unit rates when both values in the ratio are fractions? Explain.