Add Fractions with Unlike Denominators

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

What does it mean to add fractions with unlike denominators?

Back

Adding fractions with unlike denominators means you must first find a common denominator before you can combine the fractions.

Tags

CCSS.7.NS.A.1C

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.

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two or more numbers is the smallest number that is a multiple of each of the numbers.

Front

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

Back

The first step is to find a common denominator for the fractions.

Tags

CCSS.7.NS.A.1C

Front

If you have 1/4 and 3/8, what is the common denominator?

Back

The common denominator for 1/4 and 3/8 is 8.

Front

How do you convert 1/4 to have a denominator of 8?

Back

To convert 1/4 to a denominator of 8, multiply both the numerator and denominator by 2, resulting in 2/8.

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is the sum of 1/4 and 3/8?

Back

The sum of 1/4 and 3/8 is 5/8.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process to add 3/4 and 2/8?

Back

First, convert 3/4 to 6/8, then add 6/8 and 2/8 to get 1 (or 8/8).

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you add 5/6 and 1/12?

Back

Convert 5/6 to 10/12, then add 10/12 and 1/12 to get 11/12.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2