Adding & 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

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 the result over the original denominator.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, used to add or subtract them.

Front

How do you find a common denominator for 1/3 and 1/4?

Back

The least common multiple of 3 and 4 is 12, so the common denominator is 12.

Front

What is the first step to add fractions with unlike denominators?

Back

The first step is to find a common denominator.

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and the denominator by their greatest common factor.

Front

What is the sum of 2 1/2 and 3 1/4?

Back

The sum is 5 3/4.

Front

What is the difference between 5 2/3 and 2 1/3?

Back

The difference is 3 1/3.