Adding and Subtracting Unlike Fractions

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 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

How do you add fractions with unlike denominators?

Back

To add fractions with unlike 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

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 3/4 and 2/8?

Back

The first step is to find a common denominator, which in this case is 8.

Tags

CCSS.7.NS.A.1C

Front

What is the sum of 3/4 and 2/8?

Back

1 (or 8/8) after converting 3/4 to 6/8.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions with unlike denominators?

Back

Similar to addition, 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 the result of 2/6 + 1/2?

Back

5/6 after converting 1/2 to 3/6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

If Jada ate 3/8 of a pizza and Isaiah ate 1/4, how do you find the total they ate?

Back

Convert 1/4 to 2/8, then add 3/8 + 2/8 = 5/8.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the total amount of pizza eaten by Calvin and his friends?

Back

5/6 pizza after adding 1/4 + 1/4 + 3/12 + 1/12 and simplifying.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2