Least Common Denominator

Front

What is 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 least common denominator of two fractions?

Back

To find the least common denominator of two fractions, list the multiples of each denominator and identify the smallest multiple that appears in both lists.

Front

What is the least common denominator of 2/7 and 2/21?

Back

The least common denominator of 2/7 and 2/21 is 21.

Front

Which of the following numbers could NOT be a common denominator for 2/4 and 3/8?

Back

12 could NOT be a common denominator for 2/4 and 3/8.

Front

What is the least common denominator of 1/9 and 2/3?

Back

The least common denominator of 1/9 and 2/3 is 9.

Front

Find the least common denominator of 1/5 and 5/9.

Back

The least common denominator of 1/5 and 5/9 is 45.

Front

Which of these numbers could NOT be a common denominator for 1/6 and 1/4?

Back

18 could NOT be a common denominator for 1/6 and 1/4.

Front

What is a common denominator?

Back

A common denominator is a number that can be used as a denominator for two or more fractions, allowing them to be compared or added.

Front

Why is it important to find the least common denominator when adding or subtracting fractions?

Back

Finding the least common denominator is important because it allows fractions to be expressed with the same denominator, making it possible to add or subtract them accurately.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the relationship between the least common multiple (LCM) and the least common denominator (LCD)?

Back

The least common denominator (LCD) of fractions is the least common multiple (LCM) of their denominators.