Adding & 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

What does it mean to add fractions?

Back

Adding fractions involves combining the parts represented by the fractions. If the denominators are the same, add the numerators. If they are different, find a common denominator first.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

How do you find a common denominator for 1/3 and 1/4?

Back

The least common multiple of 3 and 4 is 12, so the common denominator is 12.

Front

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

Back

The first step is to find a common denominator.

Front

What is the sum of 1/3 and 1/4?

Back

1/3 + 1/4 = 4/12 + 3/12 = 7/12.

Front

How do you subtract fractions?

Back

To subtract fractions, ensure they have the same denominator. Then, subtract the numerators and keep the denominator the same.

Front

What is the difference between 5/6 and 1/3?

Back

5/6 - 1/3 = 5/6 - 2/6 = 3/6 = 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, such as 5/4.

Front

What is a mixed number?

Back

A mixed number combines a whole number and a proper fraction, such as 1 1/2.