Add and Subtract Mixed Numbers

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/4.

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 is the numerator of the fraction.

Front

What is the first step in adding mixed numbers?

Back

Convert the mixed numbers to improper fractions.

Front

How do you add mixed numbers?

Back

Add the whole numbers together, then add the fractions. If the fraction sum is improper, convert it back to a mixed number.

Front

What is the first step in subtracting mixed numbers?

Back

Convert the mixed numbers to improper fractions.

Front

How do you subtract mixed numbers?

Back

Subtract the whole numbers, then subtract the fractions. If the fraction result is negative, borrow from the whole number.

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest number that can be a common denominator for two or more fractions.

Front

How do you find the least common denominator?

Back

List the multiples of each denominator and find the smallest multiple they share.

Front

What do you do if the fractions have different denominators when adding or subtracting?

Back

Convert the fractions to equivalent fractions with a common denominator before performing the operation