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 1/3.

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

Convert the mixed numbers to improper fractions if necessary.

Front

How do you add mixed numbers with different denominators?

Back

Find the LCD, convert the fractions, add the whole numbers, and then add the fractions.

Front

What is the process for subtracting mixed numbers?

Back

Convert to improper fractions, find the LCD, subtract the whole numbers, and then subtract the fractions.

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

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 1 1/3 + 4 1/4?

Back

5 7/12.

Front

What is the result of 4 1/3 - 1 2/3?

Back

2 2/3.

Front

What is the result of 4 1/3 + 2 1/3?

Back

6 2/3.