Adding & Subtracting 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 necessary to find a common denominator to add or subtract them.

Front

How do you find a common denominator for 1/2 and 1/3?

Back

The least common denominator (LCD) of 1/2 and 1/3 is 6. You can convert 1/2 to 3/6 and 1/3 to 2/6.

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

How do you add 5/9 and 1/6?

Back

First, find a common denominator (18). Convert 5/9 to 10/18 and 1/6 to 3/18. Then add: 10/18 + 3/18 = 13/18.

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numerator and denominator are different.

Front

How can you convert 1/2 to an equivalent fraction with a denominator of 10?

Back

Multiply both the numerator and denominator by 5: 1/2 = 5/10.

Front

What is the process of simplifying a fraction?

Back

Simplifying a fraction involves dividing the numerator and denominator by their greatest common factor (GCF) to reduce it to its simplest form.

Front

What is the GCF of 8 and 12?

Back

The greatest common factor (GCF) of 8 and 12 is 4.

Front

How do you subtract fractions with unlike denominators?

Back

First, find a common denominator, convert the fractions, and then subtract the numerators while keeping the common denominator.