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How is finding the LCM revelant when adding and subtracting fractions?
Wiki User
∙ 11y ago
To add and subtract fractions, you need common denominators. To find the common denominator, find the LCM of the denominators you wish to add or subtract.
Wiki User
∙ 11y ago
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What is the definition of adding and subtracting fractions with unlike denominators?
What is the definition of Adding and Subtracting Like Fractions
Why do you find the LCM of numbers?
Finding the LCM helps in the process of adding and subtracting unlike fractions.
What types of problems can be solved using the greatest common factor and what types of problems can be solved using the least common multiple.?
Finding the GCF will help in simplifying fractions. Finding the LCM will help in adding and subtracting fractions.
How does finding the least common multiple help you add fractions?
Because when adding or subtracting fractions the denominators must have the same values
How are adding and subtracting fractions similar?
Subtracting a fraction is the same as adding its negative.
What types of problems can be solved using the the LCM?
Anything having to do with adding or subtracting unlike fractions.
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
Who invented adding and subtracting fractions?
Me
When is it useful to find the LCM or GCF of two numbers to solve a problem?
When adding or subtracting fractions with different denominators and when reducing fractions to their lowest termsWhen adding or subtracting fractions with different denominators their lowest common multiple is needed and when reducing fractions to their lowest terms their greatest common factor is needed.
What problems can be solved using gcf and LCM?
Finding the LCM will make adding and subtracting fractions easier.
Why is it helpful to write a number as a product of primes?
Because it helps in reducing fractions to their simplest terms and finding the lowest common denominator when adding or subtracting fractions
