Adding and Subtracting Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (part) and 'b' is the denominator (whole).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to add fractions?

Back

Adding fractions means combining the parts represented by the fractions. To add fractions with the same denominator, add the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3A

Front

What does it mean to subtract fractions?

Back

Subtracting fractions means finding the difference between the parts represented by the fractions. To subtract fractions with the same denominator, subtract the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3A

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.

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, first find a common denominator, convert the fractions, and then subtract the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the first step in adding or subtracting fractions?

Back

The first step is to check if the fractions have the same denominator. If not, find a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is 3/4 - 1/2?

Back

1/4

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is 4/5 - 1/20?

Back

15/20

Tags

CCSS.7.NS.A.1C

Front

What is 8/9 - 5/6?

Back

1/18

Tags

CCSS.7.NS.A.1C