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 5/4.

Front

Convert the mixed number 3 1/2 to an improper fraction.

Back

3 1/2 = 7/2.

Front

Convert the improper fraction 9/4 to a mixed number.

Back

9/4 = 2 1/4.

Front

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

Back

Add the whole numbers: 4 + 2 = 6.

Front

What is the first step in subtracting 6 3/4 - 4 1/4?

Back

Subtract the whole numbers: 6 - 4 = 2.

Front

What do you do if the fraction sum is improper when adding mixed numbers?

Back

Convert the improper fraction to a mixed number and add it to the whole number.

Front

What do you do if you need to borrow when subtracting mixed numbers?

Back

Borrow 1 from the whole number, which adds 1 to the fraction part.