Adding Fractions With Unlike Denominators

Front

What is a fraction?

Back

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to have unlike denominators in fractions?

Back

Tags

CCSS.4.NF.A.2

Front

How do you add fractions with unlike denominators?

Back

To add fractions with unlike denominators, first find a common denominator, convert each fraction to an equivalent fraction with that denominator, and then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the least common denominator (LCD)?

Back

The least common denominator (LCD) is the smallest multiple that two or more denominators share. It is used to find a common denominator for adding or subtracting fractions.

Front

Back

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you find the least common multiple (LCM) of two numbers?

Back

The least common multiple (LCM) of two numbers is the smallest number that is a multiple of both. You can find it by listing the multiples or using the prime factorization method.

Front

Back

The first step is to find the least common denominator (LCD) of 4 and 3, which is 12.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Back

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

Back

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

Back

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D