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Unit 3 Using Fractions and Percentages. Unit 3 Using Fractions and Percentages. Addition and Subtraction of Fractions. When adding or subtracting fractions, you must have the same denominator. Example:. Lowest common multiple of 4 and 5 is 20. (or ).
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Unit 3Using Fractions and Percentages Addition and Subtraction of Fractions
When adding or subtracting fractions, you must have the same denominator. Example: Lowest common multiple of 4 and 5 is 20 (or )
When adding or subtracting fractions, you must have the same denominator. Example:
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Unit 3Using Fractions and Percentages Multiplication and Division of Fractions
The rule is: Example: 3 is a common factor in both the numerator and denominator
The rule is: Example:
Example: First Calculate Thus
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Unit 3Using Fractions and Percentages Compound Interest
How much is $140 worth after 10 years in an account that pays 5% interest per year When An is the total amount after investing A0 for n years at r%
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Unit 3Using Fractions and Percentages Reverse Percentage Problem
The price of a computer is $1398, including GCT at What was the price of the computer without GCT? To add 16.5% GCT, you multiply by 1.165 To remove GCT, you divide by 1.165 Computer price
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