Adding & Subtracting Mixed Numbers

Front

What must you do first in order to add or subtract fractions with unlike denominators?

Back

Find a common denominator.

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 convert an improper fraction to a mixed number?

Back

Divide the numerator by the denominator. The quotient is the whole number, and the remainder over the original denominator is the fraction.

Front

What is the first step in adding mixed numbers?

Back

Convert any improper fractions to mixed numbers if necessary.

Front

How do you add mixed numbers with like denominators?

Back

Add the whole numbers together and then add the fractions.

Front

What is the process for subtracting mixed numbers?

Back

Convert to improper fractions, find a common denominator, and then subtract.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions.

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 result of adding 2 1/4 and 3 1/4?

Back

5 1/2.

Front

How do you simplify the fraction 8/12?

Back

Divide both the numerator and denominator by their greatest common factor, which is 4, resulting in 2/3.