Adding and Subtracting unlike fractions

Front

What is a common denominator?

Back

A common denominator is a number that can be used as a denominator for two or more fractions, making it easier to add or subtract them.

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) is the smallest number that is a multiple of two or more numbers.

Front

How do you find a common denominator for 1/3 and 1/6?

Back

The common denominator for 1/3 and 1/6 is 6, as it is the smallest number that both denominators can divide into.

Front

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

Back

To add 1/2 and 1/3, first find a common denominator (6). The result is 5/6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Can you add fractions with different denominators directly?

Back

No, you cannot add fractions with different denominators directly. You must first find a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the common denominator for 1/2, 1/3, and 1/4?

Back

The common denominator for 1/2, 1/3, and 1/4 is 12.

Front

What is 3/4 + 1/8?

Back

3/4 + 1/8 = 7/8.

Tags

CCSS.5.NF.A.2

CCSS.5.NF.A.1

Front

What is the sum of 2/12 + 1/12 + 3/12 + 1/12 + 4/12?

Back

The sum is 11/12.

Tags

CCSS.4.NF.B.3D

CCSS.4.NF.B.3C

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms, where the numerator and denominator have no common factors other than 1.

Front

What is an unlike fraction?

Back

Unlike fractions are fractions that have different denominators.

Tags

CCSS.3.NF.A.2B

CCSS.3.NF.A.1