Adding and Subtracting Mixed Numbers with Like Denominators

Front

What is a mixed number?

Back

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

Tags

CCSS.3.NF.A.3C

Front

How do you add mixed numbers with like denominators?

Back

To add mixed numbers with like denominators, add the whole numbers together and then add the fractions together. If the fraction sum is improper, convert it to a mixed number.

Tags

CCSS.7.NS.A.1C

Front

What is a like denominator?

Back

Like denominators are denominators that are the same in two or more fractions, such as 1/4 and 3/4.

Tags

CCSS.4.NF.B.3A

Front

How do you subtract mixed numbers with like denominators?

Back

To subtract mixed numbers with like denominators, subtract the whole numbers and then subtract the fractions. If the fraction result is negative, borrow from the whole number.

Tags

CCSS.7.NS.A.1C

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms, where the numerator and denominator have no common factors other than 1.

Front

What is the first step in adding mixed numbers?

Back

The first step is to add the whole numbers together.

Tags

CCSS.7.NS.A.1C

Front

What is the first step in subtracting mixed numbers?

Back

The first step is to subtract the whole numbers.

Tags

CCSS.7.NS.A.1C

Front

If you have 3 1/4 + 2 1/4, what is the sum?

Back

The sum is 5 1/2.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

If you have 5 3/8 - 2 3/8, what is the difference?

Back

The difference is 3 3/8.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What do you do if the fraction sum is improper?

Back

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