Adding and Subtracting Fractions with unlike denominators

Front

What is a fraction?

Back

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

Front

What does the denominator in a fraction represent?

Back

The denominator indicates how many equal parts the whole is divided into.

Front

What does the numerator in a fraction represent?

Back

The numerator shows how many parts of the whole are being considered.

Front

What is an unlike denominator?

Back

Unlike denominators are denominators that are not the same in two or more fractions.

Front

How do you find a common denominator for two fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators.

Front

What is the least common multiple (LCM)?

Back

The LCM is the smallest number that is a multiple of two or more numbers.

Front

How do you add fractions with unlike denominators?

Back

Convert the fractions to have a common denominator, then add the numerators and keep the common denominator.

Front

How do you subtract fractions with unlike denominators?

Back

Convert the fractions to have a common denominator, then subtract the numerators and keep the common denominator.

Front

What is the first step in adding or subtracting fractions?

Back

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

Front

What is an example of adding fractions with unlike denominators?

Back

Example: 1/2 + 1/3 = 3/6 + 2/6 = 5/6.