Adding and Subtracting Mixed Numbers

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 find the lowest common denominator (LCD)?

Back

To find the LCD, list the multiples of each denominator and find the smallest multiple that they share.

Front

What is the first step in adding mixed numbers?

Back

The first step is to find the lowest common denominator for the fractions.

Front

What is the first step in subtracting mixed numbers?

Back

The first step is to find the lowest common denominator for the 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.

Front

What is the result of 6 1/2 - 2 2/3?

Back

The result is 3 5/6.

Front

What is the result of 1 1/3 + 4 1/4?

Back

The result is 5 7/12.

Front

How do you subtract fractions with different denominators?

Back

Convert them to have a common denominator, then subtract the numerators.

Front

What is the result of 8 5/7 - 7 2/3?

Back

The result is 1 1/21.

Front

What is the result of 8 6/9 - 3 2/5?

Back

The result is 5 12/45.