Fractions - Addition and Subtraction

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists of a numerator (top number) and a denominator (bottom number). For example, in the fraction 1/2, 1 is the numerator and 2 is the denominator.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to add fractions with the same denominator?

Back

When adding fractions with the same denominator, you keep the denominator the same and add the numerators. For example, 1/4 + 2/4 = (1+2)/4 = 3/4.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What does it mean to subtract fractions with the same denominator?

Back

When subtracting fractions with the same denominator, you keep the denominator the same and subtract the numerators. For example, 3/5 - 1/5 = (3-1)/5 = 2/5.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, first find a common denominator, convert the fractions, and then add the numerators. For example, to add 1/3 and 1/4, the common denominator is 12: (1/3 = 4/12) + (1/4 = 3/12) = 7/12.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you subtract fractions with different denominators?

Back

To subtract fractions with different denominators, find a common denominator, convert the fractions, and then subtract the numerators. For example, to subtract 1/2 from 3/4, the common denominator is 4: (3/4 - 2/4 = 1/4).

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the result of 1/8 + 1/8 + 1/8?

Back

3/8.

Tags

CCSS.4.NF.B.3A

Front

What is the missing fraction in the equation 1 - ______ = 3/4?

Back

1/4.

Tags

CCSS.4.NF.B.3A

Front

What is the result of 5/10 - 3/10?

Back

2/10.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What fraction do you need to add to 2/12 to make 1?

Back

10/12.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the result of 2/5 + 3/5?

Back

1.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D