I show you TWO ways to find out which kind of nuts are a better buy when comparing the price per pound, and the quantities are fractional (3/4 and 1/2 lb). This lesson is meant for 6th-7th grade or pre-algebra students.
One way is to calculate the unit price or unit rate: price for 1 pound.
The other way, in our case, is to calculate the price for 1/4 pound. It works well in this case since the quantities are 3/4 pound and 1/2 pound.
In the first part of this lesson, I solve examples that involve several operations with positive and negative fractions (and decimals), including some complex fractions. It is at https://www.youtube.com/watch?v=30vZW--hRrw
Tagged under: math,Mathematics (Field Of Study),unit rate,Word Problem,fraction,7th grade,pre-algebra,unit price
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