Adding and Subtraction 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 means combining the parts represented by the fractions to find a total.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/2.

Front

How do you subtract fractions with the same denominator?

Back

Subtract the numerators and keep the same denominator. For example, 5/12 - 2/12 = 3/12.

Front

What is the first step when adding mixed numbers?

Back

Add the fractions first before adding the whole numbers.

Front

What is the result of 4 1/5 - 2 4/5?

Back

1 2/5.

Front

What is the result of 9/12 - 4/12?

Back

5/12.

Front

What is the result of 8/8 - 3/8?

Back

5/8.

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest number that can be used as a common denominator for two or more fractions.

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place that over the original denominator.