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The secret to adding and subtracting fractions is finding the least common denominator. For example: 1/5 + 3/10 The smallest integer that is divisible by 5 and 10 is 10. 5*2=10 and and 10*1=10 We multiply each fraction by 10/10: 1/5*10/10 + 3/10*10/10 = 2/10 + 3/10 = 5/10 = 1/2
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How are adding and subtracting fractions similar?
Subtracting a fraction is the same as adding its negative.
What are the rules for adding fractions?
Ensure that the denominators are the same when adding or subtracting fractions.
How are adding fractions different?
When adding or subtracting fractions their denominators must be the same
Before adding or subtracting two fractions they are converted into like fractions Explain with examples why this is necessary?
Before adding or subtracting two fractions they are converted into like fractions. Explain with examples why this is necessary.
Before adding or subtracting Why are fractions turned into like fractions?
They have to have the same denominator.
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