Learn how to solve fraction off sales problems using tape diagrams, subtraction, and finding fractional parts. An example problem is provided to demonstrate the application of these methods in determining the sale price of an item. Explore different approaches to calculate discounts effortlessly.
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METHODS FOR SOLVING FRACTION OFF SALES PROBLEMS: Method 1: Draw a tape diagram. Method 2: Subtract the fraction of the price from the original price. Method 3: Find the fractional part of the price being paid by subtracting the fraction of the price from 1 whole.
EXAMPLE: A store advertises its end of the season sale with shoes at off the original price (called the discount rate). a) If the original price of the shoes is $40, and they are advertised as off, what is the sale price?
METHOD 1 Tape Diagram $10 $10 $10 $10 $40 off the original price is: 10 + 10 +10 = $30
METHOD 2 Subtract of the price from the original price. $40 1 (40) = 40 10 = $30 4
METHOD 3 Find the fractional part of the price being paid by subtracting of the price from 1 whole. (1 - 1 ) 40 4 = 3 . 40 4 = $30
