What does it mean to work with the left hand side?
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When adding or subtracting fractions, it means to add or subtract the numerators while keeping the denominator the same.
Why do we need a common denominator?
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A common denominator is needed so that we can compare and combine fractions with different denominators.
How do I find the least common multiple (LCM) of two numbers?
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List the multiples of each number and find the smallest multiple that is common to both.
What is the least common multiple (LCM) of 4 and 6?
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The LCM of 4 and 6 is 12.
How do I add fractions with different denominators?
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Find the LCM of the denominators and rewrite each fraction with the LCM as the new denominator.
What is the formula for finding the LCM of two numbers?
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The LCM of two numbers a and b can be found using the formula: LCM(a,b) = |a*b| / GCD(a,b)
What is the greatest common divisor (GCD) of two numbers?
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The GCD of two numbers is the largest positive integer that divides both numbers without leaving a remainder.
How do I subtract fractions with different denominators?
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Find the LCM of the denominators and rewrite each fraction with the LCM as the new denominator. Then, subtract the numerators.
Why is it important to simplify the fraction after combining?
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Simplifying the fraction ensures that the result is in its simplest form and makes it easier to read and work with.
How do I simplify a fraction?
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Divide the numerator and denominator by their greatest common divisor.