LCD Rational Expressions

Front

What is the definition of the Least Common Denominator (LCD)?

Back

The Least Common Denominator (LCD) is the smallest multiple that is common to the denominators of two or more fractions.

Front

How do you find the LCD of numerical values?

Back

To find the LCD of numerical values, list the multiples of each number and identify the smallest common multiple.

Front

Find the LCD of 3, 1, 5a.

Back

15a

Tags

CCSS.HSA.APR.D.7

Front

Back

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CCSS.HSA.APR.D.7

Front

Back

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CCSS.HSA.APR.D.7

Front

Find the LCD of 3x^2, 6x, 2x^3.

Back

Front

Back

20x

Tags

CCSS.HSA.APR.D.7

Front

What is the first step in finding the LCD of algebraic expressions?

Back

Factor each denominator into its prime factors and variables.

Tags

CCSS.HSA.APR.D.7

Front

Why is it important to find the LCD when adding or subtracting fractions?

Back

Finding the LCD allows you to combine fractions by providing a common denominator, making addition or subtraction possible.

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CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the relationship between the LCD and the GCD (Greatest Common Divisor)?

Back

The LCD can be found using the GCD; specifically, LCD(a, b) = (a * b) / GCD(a, b) for two numbers.