Adding and Subtracting Fractions with Unlike Denominators

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

Tags

CCSS.3.NF.A.2B

CCSS.3.NF.A.1

Front

What are unlike denominators?

Back

Unlike denominators are denominators in fractions that are not the same. For example, in the fractions 1/4 and 1/3, the denominators 4 and 3 are unlike.

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3B

CCSS.3.NF.A.3A

Front

How do you add fractions with unlike denominators?

Back

To add fractions with unlike denominators, first find a common denominator, convert the fractions, and then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the first step in subtracting fractions with unlike denominators?

Back

The first step is to find a common denominator for the fractions.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you convert a fraction to an equivalent fraction?

Back

To convert a fraction to an equivalent fraction, multiply or divide both the numerator and the denominator by the same non-zero number.

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

Front

What is a mixed number?

Back

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

Tags

CCSS.3.NF.A.3C

Front

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

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that over the original denominator.

Front

What is the process for subtracting a fraction from a mixed number?

Back

Convert the mixed number to an improper fraction, find a common denominator, and then subtract the fractions.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the result of 3/4 + 1/2?

Back

The result is 5/4 or 1 1/4 after finding a common denominator and adding.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2