Adding and Subtracting Fractions

Front

What must you have in order to add and subtract fractions?

Back

Common denominators are required to add and subtract fractions.

Front

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

Back

Find the least common denominator (LCD) for the fractions.

Front

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

Back

The LCD is the smallest multiple that is common to both denominators.

Front

What is the least common denominator for 1/3 and 3/4?

Back

The least common denominator for 1/3 and 3/4 is 12.

Front

What is the sum of 1/8 and 5/8?

Back

1/8 + 5/8 = 6/8, which simplifies to 3/4.

Front

What is the process to add fractions with the same denominator?

Back

Add the numerators together and keep the denominator the same.

Front

What is the result of 7/15 - 1/5?

Back

To subtract, convert 1/5 to 3/15, then 7/15 - 3/15 = 4/15.

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator and a denominator.

Front

What does the numerator in a fraction represent?

Back

The numerator represents the number of parts being considered.

Front

What does the denominator in a fraction represent?

Back

The denominator represents the total number of equal parts in a whole.