Adding and Subtracting Fractions Using Models

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 (the number of parts) and 'b' is the denominator (the total number of equal parts).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

How do you add fractions with the same denominator?

Back

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions with the same denominator?

Back

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

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

Back

The first step is to find a common denominator, which is a multiple of both denominators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a common denominator?

Back

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

Front

How do you find a common denominator for 1/4 and 1/6?

Back

The least common multiple (LCM) of 4 and 6 is 12, so the common denominator is 12.

Front

Back

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

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

Back

Front

Back

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D