COMPARE SMARTER
Which one is really the best buy?
Turn each rate into a price for 1 unit. Then the better deal becomes easy to see.
THE UNIT RATE RECIPE
One denominator. One clear comparison.
A rate compares two quantities. A unit rate compares a quantity to exactly 1 of another quantity—like dollars per ounce or miles per hour.
- 01Write the rate as a fraction.
- 02Divide both parts by the bottom number.
- 03State unit rate as a fraction over 1.
- 04Compare unit rates for the best buy.
EXAMPLE
$68 notebooks
=
$6 ÷ 88 ÷ 8
=
$0.751 notebook
=$0.75per notebook
PRACTICE • PROBLEM 1
Compare the two choices.
SMART SHOPPER STATUS