Add and Subtract mixed numbers with unlike denominators

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 \frac{3}{4}.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to add mixed numbers with unlike denominators?

Back

It means to combine mixed numbers that have different denominators, requiring a common denominator to perform the addition.

Tags

CCSS.7.NS.A.1C

Front

How do you find a common denominator for two fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators.

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, such as \frac{1}{2} and \frac{2}{4}.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is the first step in adding mixed numbers?

Back

The first step is to convert the mixed numbers into improper fractions.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

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

Back

Multiply the whole number by the denominator, add the numerator, and place that over the original denominator.

Front

What is the sum of 3 \frac{5}{8} and 6 \frac{1}{2}?

Back

The sum is 10 \frac{1}{8}.

Tags

CCSS.7.NS.A.1C

Front

What do you do if the fractions have different denominators?

Back

You must find a common denominator before adding or subtracting the fractions.

Tags

CCSS.7.NS.A.1C

Front

What is the result of adding \frac{5}{9} and \frac{1}{6}?

Back

The result is \frac{13}{18}.

Tags

CCSS.7.NS.A.1C

Front

What operation do you perform when the question asks for the sum?

Back

You perform addition.

Tags

CCSS.5.NBT.B.7