Adding and Subtracting 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

How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert the fractions, and then add the numerators.

Front

What is the least common denominator (LCD)?

Back

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

Front

What is the first step in adding 1/4 and 1/2?

Back

The first step is to find the least common denominator, which is 4 in this case.

Front

What is 1/4 + 1/2?

Back

1/4 + 1/2 = 3/4.

Front

How do you subtract fractions?

Back

To subtract fractions, ensure they have the same denominator, then subtract the numerators.

Front

What is 3/4 - 1/4?

Back

3/4 - 1/4 = 2/4 = 1/2.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator.

Front

Convert the improper fraction 9/4 to a mixed number.

Back

9/4 = 2 1/4.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction.