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 add mixed numbers?

Back

To add mixed numbers, first add the whole numbers, then add the fractions. If the fraction sum is improper, convert it to a mixed number.

Front

How do you subtract mixed numbers?

Back

To subtract mixed numbers, first subtract the whole numbers, then subtract the fractions. If the fraction from the top is smaller, borrow from the whole number.

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 9/4.

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 denominator.

Front

What is the first step in adding 8 2/4 and 3 1/3?

Back

Convert both mixed numbers to improper fractions.

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 find the least common denominator for 4 and 3?

Back

The least common denominator for 4 and 3 is 12.

Front

What is the result of 8 2/4 - 3 1/3?

Back

The result is 5 1/6.

Front

What do you do if the fraction part of the answer is improper?

Back

Convert the improper fraction to a mixed number.