Adding Fractions with Unlike Denominators

Front

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

Back

Find a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of the fractions being added or subtracted.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you find the least common denominator (LCD) of two fractions?

Back

List the multiples of each denominator and find the smallest multiple they have in common.

Front

What is the numerator in a fraction?

Back

The numerator is the top number in a fraction that represents how many parts of the whole are being considered.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is the denominator in a fraction?

Back

The denominator is the bottom number in a fraction that indicates the total number of equal parts the whole is divided into.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

When adding fractions, what must you do to the numerators after finding a common denominator?

Back

You add the numerators together.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What happens to the denominator when adding fractions with a common denominator?

Back

The denominator remains the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

Can you add fractions with different denominators directly?

Back

No, you must first convert them to have a common denominator.

Tags

CCSS.7.NS.A.1C

Front

What is an example of adding fractions with unlike denominators?

Back

1/4 + 1/6 = 3/12 + 2/12 = 5/12 after finding a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process of simplifying a fraction?

Back

Simplifying a fraction involves dividing the numerator and the denominator by their greatest common factor.