Adding and Subtracting Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole and is expressed as a ratio of two integers, with a numerator (top number) and a denominator (bottom number).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to add fractions?

Back

Adding fractions involves combining two or more fractions to find a total. If the denominators are the same, you add the numerators. If they are different, you must find a common denominator first.

Tags

CCSS.4.NF.B.3A

Front

How do you find a common denominator for two fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators of the fractions you want to add or subtract.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 1/4 and 3/4?

Back

The sum of 1/4 and 3/4 is 1 (or 4/4).

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions?

Back

To subtract fractions, ensure they have a common denominator. If they do, subtract the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the difference between 15/16 and 12/16?

Back

The difference between 15/16 and 12/16 is 3/16.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the simplified form of 6/8?

Back

The simplified form of 6/8 is 3/4.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction, such as 1 1/2.

Tags

CCSS.3.NF.A.3C

Front

How do you convert an improper fraction to a mixed number?

Back

To convert an improper fraction to a mixed number, divide the numerator by the denominator. The quotient is the whole number, and the remainder is the new numerator over the original denominator.