Adding & Subtracting Fractions & Mixed Numbers

Front

What is a fraction?

Back

A fraction represents a part of a whole, consisting of a numerator (top number) and a denominator (bottom number).

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/2.

Front

What is an improper fraction?

Back

An improper fraction has a numerator that is greater than or equal to its denominator, like 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 the result over the original denominator.

Front

Convert 3 1/4 to an improper fraction.

Back

3 1/4 = (3 * 4 + 1)/4 = 13/4.

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 add fractions with the same denominator?

Back

Add the numerators and keep the same denominator. For example, 1/4 + 2/4 = (1+2)/4 = 3/4.

Front

How do you subtract fractions with the same denominator?

Back

Subtract the numerators and keep the same denominator. For example, 3/5 - 1/5 = (3-1)/5 = 2/5.

Front

What is the process to add fractions with different denominators?

Back

Find the least common denominator, convert the fractions, then add the numerators.

Front

Add 1/3 + 1/6.

Back

1/3 + 1/6 = 2/6 + 1/6 = 3/6 = 1/2.