Adding Fractions with Unlike Denominators

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

Front

What does it mean to have unlike denominators?

Back

Unlike denominators are when the bottom numbers of two or more fractions are different, making it impossible to add them directly.

Front

Can you add fractions with unlike denominators directly?

Back

No, you cannot add fractions with unlike denominators directly. You must first find a common denominator.

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

How do you find a common denominator for 1/4 and 1/6?

Back

The least common multiple (LCM) of 4 and 6 is 12, so the common denominator is 12.

Front

What is the first step in adding fractions with unlike denominators?

Back

The first step is to find a common denominator for the fractions.

Front

If you have 1/4 and 1/6, what are the equivalent fractions with a common denominator of 12?

Back

1/4 = 3/12 and 1/6 = 2/12.

Front

What is the sum of 3/12 and 2/12?

Back

The sum is 5/12.

Front

How do you reduce a fraction?

Back

To reduce a fraction, divide both the numerator and the denominator by their greatest common factor (GCF).

Front

What is the GCF of 8 and 24?

Back

The GCF of 8 and 24 is 8.