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 fractions have different denominators, find a common denominator before adding.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

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

Back

The least common denominator (LCD) of 1/3 and 1/4 is 12.

Front

What is the first step in adding fractions with unlike denominators?

Back

The first step is to find a common denominator.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms by dividing both the numerator and denominator by their greatest common factor.

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor is the largest number that divides both the numerator and denominator without leaving a remainder.

Front

How do you convert a mixed number to an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that over the original denominator.

Front

What is the improper fraction for 3 2/5?

Back

The improper fraction for 3 2/5 is 17/5.

Front

What is the result of adding 9 5/7 and 5 2/3?

Back

The result is 11 5/6.