Adding and Subtracting unlike fractions

Front

What are unlike fractions?

Back

Fractions that have different denominators.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

Can you add unlike fractions directly?

Back

No, you cannot add unlike denominators without finding a common denominator.

Tags

CCSS.7.NS.A.1C

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of two or more fractions.

Front

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

Back

The least common denominator is the smallest multiple that two or more denominators share.

Front

What is the first step in adding unlike fractions?

Back

Find the least common denominator (LCD) for the fractions.

Tags

CCSS.7.NS.A.1C

Front

If you have 1/4 and 1/6, what is the least common denominator?

Back

The least common denominator is 12.

Front

How do you convert fractions to have a common denominator?

Back

Multiply the numerator and denominator of each fraction by the necessary factor to reach the common denominator.

Front

What is 1/3 + 1/6?

Back

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

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms.

Front

What is 10/15 simplified?

Back

10/15 simplified is 2/3.