Adding and Subtracting Fractions

Front

Before you can add or subtract fractions, what needs to be the same?

Back

Denominator

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 is the least common denominator (LCD)?

Back

The least common denominator is the smallest multiple that two or more denominators share.

Front

How do you find the least common denominator of 1/4 and 1/6?

Back

The least common denominator of 1/4 and 1/6 is 12.

Front

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

Back

Find the least common denominator (LCD).

Front

If you have 1/3 + 1/4, what is the first step?

Back

Find the least common denominator, which is 12.

Front

How do you convert 1/3 to have a denominator of 12?

Back

Multiply both the numerator and denominator by 4 to get 4/12.

Front

How do you convert 1/4 to have a denominator of 12?

Back

Multiply both the numerator and denominator by 3 to get 3/12.

Front

What is the sum of 4/12 and 3/12?

Back

The sum is 7/12.

Front

What is the process for subtracting fractions?

Back

Ensure the denominators are the same, then subtract the numerators.