Video and Examples
Learn how to turn any ratio into a unit ratio.
A unit rate is a ratio that has a denominator of 1. A unit rate is also called a unit ratio. (They mean the same thing.)
and and are ratios, but they are not unit ratios.
Any ratio can be converted into a unit ratio by dividing the numerator and the denominator by the denominator.
Example 1
At a school dance, there are 6 girls for every 3 boys. |
What is the ratio of girls to boy as a unit rate? (girls per boy) |
What is the ratio of boys to girl as a unit rate? (boys per girl) |
Example 2
20 sticks of gum costs $1.25 |
What is the price per stick of gum? |
What is the ratio of sticks to price as a unit ratio? |
Self-Check
Q1: Write the following ratio as a unit rate (km per hr): 474 km in 6 hours [show answer]
Q2: Write the unit rate (cost per muffin). $2.00 for 5 muffins [show answer]
Q3: A 16-oz jar of peanut butter costs $4.39. To the nearest cent, find the unit price in cents per ounce. [show answer]