Adding and Subtracting 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 (part) and 'b' is the denominator (whole).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to have unlike denominators?

Back

Unlike denominators are denominators in fractions that are not the same, making it necessary to find a common denominator to add or subtract 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 two denominators.

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

How do you add fractions with unlike denominators?

Back

Convert each fraction to an equivalent fraction with the common denominator, then add the numerators and keep the common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process for subtracting fractions with unlike denominators?

Back

Similar to addition, find a common denominator, convert the fractions, then subtract the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the result of 1/3 + 2/5?

Back

The result is 11/15 after finding a common denominator and adding the fractions.

Tags

CCSS.7.NS.A.1C

Front

What is the result of 1/4 + 3/10 + 1/5?

Back

The result is 1/2 after finding a common denominator and adding the fractions.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

If Nate has 1/4 of his cards and gives away 1/10, how do you find out how much he has left?

Back

Convert both fractions to a common denominator, subtract the total given away from the original amount.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 1 1/3 + 3/5?

Back

The sum is 1 14/15 after converting to a common denominator and adding.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2