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 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 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 do you find the least common denominator (LCD) of two fractions?

Back

To find the LCD, list the multiples of each denominator and find the smallest multiple that they have in common.

Front

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

Back

The least common denominator is 12.

Front

How do you add fractions with unlike denominators?

Back

First, find the least common denominator, convert each fraction to an equivalent fraction with the LCD, then add the numerators and keep the denominator.

Front

Solve: 1/3 + 1/6 = ?

Back

1/3 + 1/6 = 1/2.

Front

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

Back

The first step is to find the least common denominator.

Front

What is the least common denominator of 2/5 and 3/10?

Back

The least common denominator is 10.