Fraction Addition and Subtraction

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.1

CCSS.3.NF.A.2B

Front

What does the numerator in a fraction represent?

Back

The numerator indicates how many parts of the whole are being considered.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does the denominator in a fraction represent?

Back

The denominator shows the total number of equal parts the whole is divided into.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is the least common multiple (LCM)?

Back

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

Front

How do you add fractions with the same denominator?

Back

Add the numerators together and keep the same denominator.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions with the same denominator?

Back

Subtract the numerators and keep the same denominator.

Tags

CCSS.7.NS.A.1C

Front

What must fractions have in common to be added or subtracted?

Back

Fractions must have the same denominator to be added or subtracted.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

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

Back

Find the least common multiple (LCM) of the denominators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is an example of adding fractions with different denominators?

Back

1/4 + 1/2 = 1/4 + 2/4 = 3/4.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is an example of subtracting fractions with different denominators?

Back

3/4 - 1/2 = 3/4 - 2/4 = 1/4.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2