Adding Fractions

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

Can you add fractions with different denominators directly?

Back

No, you cannot add 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.

Front

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

Back

The least common multiple (LCM) of 2 and 3 is 6, so the common denominator is 6.

Front

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

Back

The first step is to find a common denominator.

Front

Add the fractions: 1/4 + 1/4 = ?

Back

1/4 + 1/4 = 2/4 = 1/2.

Front

Add the fractions: 2/5 + 1/5 = ?

Back

2/5 + 1/5 = 3/5.

Front

What is the sum of 1/3 + 1/6?

Back

1/3 + 1/6 = 1/2 after finding a common denominator.