Adding and 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

How do you subtract mixed numbers?

Back

To subtract mixed numbers, first subtract the whole numbers, then subtract the fractions. If the fraction from the first number is smaller than the second, borrow from the whole 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 and add the numerator. Place this result over the original denominator.

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 find the least common denominator?

Back

To find the least common denominator, list the multiples of each denominator and find the smallest multiple they share.

Front

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

Back

The first step is to find the least common denominator (LCD) for the fractions.

Front

What do you do if the fraction part of a mixed number is improper after addition or subtraction?

Back

If the fraction part is improper, convert it to a mixed number by dividing the numerator by the denominator.

Front

What is the process of borrowing in subtraction of mixed numbers?

Back

Borrowing involves taking 1 from the whole number part, converting it to a fraction equivalent, and adding it to the fraction part.