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Earn +20 ptsQ: Adding and subtracting fractions
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Continue Learning about Basic Math
Who invented adding and subtracting fractions?
Me
When would you need to know what LCM is?
When you are adding or subtracting fractions.
Why are equivalent fractions important when adding and subtracting fractions?
Because to add or subtract two fractions you first have to find equivalent fractions for both which have the same denominator.
Why do you have to have a common denominator?
A common denominator is needed when adding or subtracting fractions of different denominators.
How do you solve a fraction problem when you don't have the same denominator?
If you are adding or subtracting unlike fractions, convert them to equivalent fractions with a common denominator.
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