Least Common Denominator

Front

What is a Least Common Denominator (LCD)?

Back

The smallest number that can be a common denominator for two or more fractions.

Front

Why can't you add fractions with unlike denominators directly?

Back

You must first convert them to have a common denominator.

Front

What is the least common denominator of 1/4 and 1/6?

Back

12

Front

Which of these is NOT a common denominator for 1/3 and 1/5? 15, 30, 5, 10

Back

5

Front

How do you find the least common denominator of two fractions?

Back

List the multiples of each denominator and find the smallest common multiple.

Front

What is the least common multiple (LCM)?

Back

The smallest multiple that two or more numbers share.

Front

If the denominators are 8 and 12, what is the least common denominator?

Back

24

Front

Can 18 be a common denominator for 2/9 and 1/6?

Back

Yes, because both fractions can be converted to have 18 as the denominator.

Front

What is an equivalent fraction?

Back

A fraction that represents the same value as another fraction, even if the numerator and denominator are different.

Front

If you have 1/2 and 1/3, what is the least common denominator?

Back

6